Home / 13,113.62-18,096.74-7,145.24

Finding the Fourth Proportional to 13,113.62, 18,096.74 and 7,145.24

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Solution

The fourth proportional to 13,113.62, 18,096.74 and 7,145.24 is: 9,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.62 : 18,096.74 = 7,145.24 : x
  2. Step 2: Convert to fraction form
    13,113.62/18,096.74 = 7,145.24/x
  3. Step 3: Cross multiply
    13,113.62x = 18,096.74 × 7,145.24
  4. Step 4: Simplify right side
    13,113.62x = 129,305,550.52
  5. Step 5: Solve for x
    x = 129,305,550.52/13,113.62
  6. Step 6: Final answer
    x = 9,860.40

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Half scale
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Double scale
Find fourth proportional to 13,114.62, 18,098.12 and 7,146.24
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.