Home / 9,001.30-12,421.78-5,022.38

Finding the Fourth Proportional to 9,001.30, 12,421.78 and 5,022.38

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Solution

The fourth proportional to 9,001.30, 12,421.78 and 5,022.38 is: 6,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,001.30 : 12,421.78 = 5,022.38 : x
  2. Step 2: Convert to fraction form
    9,001.30/12,421.78 = 5,022.38/x
  3. Step 3: Cross multiply
    9,001.30x = 12,421.78 × 5,022.38
  4. Step 4: Simplify right side
    9,001.30x = 62,386,899.44
  5. Step 5: Solve for x
    x = 62,386,899.44/9,001.30
  6. Step 6: Final answer
    x = 6,930.88

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Half 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.