Home / 15,902.10-21,932.50-11,120.46

Finding the Fourth Proportional to 15,902.10, 21,932.50 and 11,120.46

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Solution

The fourth proportional to 15,902.10, 21,932.50 and 11,120.46 is: 15,337.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,902.10 : 21,932.50 = 11,120.46 : x
  2. Step 2: Convert to fraction form
    15,902.10/21,932.50 = 11,120.46/x
  3. Step 3: Cross multiply
    15,902.10x = 21,932.50 × 11,120.46
  4. Step 4: Simplify right side
    15,902.10x = 243,899,488.95
  5. Step 5: Solve for x
    x = 243,899,488.95/15,902.10
  6. Step 6: Final answer
    x = 15,337.56

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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.