Home / 9,129.43-12,597.51-5,150.71

Finding the Fourth Proportional to 9,129.43, 12,597.51 and 5,150.71

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Solution

The fourth proportional to 9,129.43, 12,597.51 and 5,150.71 is: 7,107.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.43 : 12,597.51 = 5,150.71 : x
  2. Step 2: Convert to fraction form
    9,129.43/12,597.51 = 5,150.71/x
  3. Step 3: Cross multiply
    9,129.43x = 12,597.51 × 5,150.71
  4. Step 4: Simplify right side
    9,129.43x = 64,886,120.73
  5. Step 5: Solve for x
    x = 64,886,120.73/9,129.43
  6. Step 6: Final answer
    x = 7,107.36

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Half scale
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Double scale
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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.