Home / 9,414.12-12,992.10-5,435.13

Finding the Fourth Proportional to 9,414.12, 12,992.10 and 5,435.13

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Solution

The fourth proportional to 9,414.12, 12,992.10 and 5,435.13 is: 7,500.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,414.12 : 12,992.10 = 5,435.13 : x
  2. Step 2: Convert to fraction form
    9,414.12/12,992.10 = 5,435.13/x
  3. Step 3: Cross multiply
    9,414.12x = 12,992.10 × 5,435.13
  4. Step 4: Simplify right side
    9,414.12x = 70,613,780.81
  5. Step 5: Solve for x
    x = 70,613,780.81/9,414.12
  6. Step 6: Final answer
    x = 7,500.83

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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.