Home / 11,113.38-15,311.85-7,329.87

Finding the Fourth Proportional to 11,113.38, 15,311.85 and 7,329.87

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Solution

The fourth proportional to 11,113.38, 15,311.85 and 7,329.87 is: 10,098.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.38 : 15,311.85 = 7,329.87 : x
  2. Step 2: Convert to fraction form
    11,113.38/15,311.85 = 7,329.87/x
  3. Step 3: Cross multiply
    11,113.38x = 15,311.85 × 7,329.87
  4. Step 4: Simplify right side
    11,113.38x = 112,233,869.96
  5. Step 5: Solve for x
    x = 112,233,869.96/11,113.38
  6. Step 6: Final answer
    x = 10,098.99

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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.