Home / 9,121.58-12,586.56-5,293.12

Finding the Fourth Proportional to 9,121.58, 12,586.56 and 5,293.12

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Solution

The fourth proportional to 9,121.58, 12,586.56 and 5,293.12 is: 7,303.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.58 : 12,586.56 = 5,293.12 : x
  2. Step 2: Convert to fraction form
    9,121.58/12,586.56 = 5,293.12/x
  3. Step 3: Cross multiply
    9,121.58x = 12,586.56 × 5,293.12
  4. Step 4: Simplify right side
    9,121.58x = 66,622,172.47
  5. Step 5: Solve for x
    x = 66,622,172.47/9,121.58
  6. Step 6: Final answer
    x = 7,303.80

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Half scale
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Double scale
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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.