Home / 9,098.12-12,555.28-5,119.23

Finding the Fourth Proportional to 9,098.12, 12,555.28 and 5,119.23

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Solution

The fourth proportional to 9,098.12, 12,555.28 and 5,119.23 is: 7,064.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,098.12 : 12,555.28 = 5,119.23 : x
  2. Step 2: Convert to fraction form
    9,098.12/12,555.28 = 5,119.23/x
  3. Step 3: Cross multiply
    9,098.12x = 12,555.28 × 5,119.23
  4. Step 4: Simplify right side
    9,098.12x = 64,273,366.03
  5. Step 5: Solve for x
    x = 64,273,366.03/9,098.12
  6. Step 6: Final answer
    x = 7,064.47

Related Problems

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Half scale
Find fourth proportional to 18,196.24, 25,110.56 and 10,238.46
Double scale
Find fourth proportional to 9,099.12, 12,556.66 and 5,120.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.