Home / 11,432.11-15,775.27-7,240.27

Finding the Fourth Proportional to 11,432.11, 15,775.27 and 7,240.27

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Solution

The fourth proportional to 11,432.11, 15,775.27 and 7,240.27 is: 9,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,432.11 : 15,775.27 = 7,240.27 : x
  2. Step 2: Convert to fraction form
    11,432.11/15,775.27 = 7,240.27/x
  3. Step 3: Cross multiply
    11,432.11x = 15,775.27 × 7,240.27
  4. Step 4: Simplify right side
    11,432.11x = 114,217,214.12
  5. Step 5: Solve for x
    x = 114,217,214.12/11,432.11
  6. Step 6: Final answer
    x = 9,990.91

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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.