Home / 15,138.66-20,902.14-11,624.88

Finding the Fourth Proportional to 15,138.66, 20,902.14 and 11,624.88

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Solution

The fourth proportional to 15,138.66, 20,902.14 and 11,624.88 is: 16,050.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.66 : 20,902.14 = 11,624.88 : x
  2. Step 2: Convert to fraction form
    15,138.66/20,902.14 = 11,624.88/x
  3. Step 3: Cross multiply
    15,138.66x = 20,902.14 × 11,624.88
  4. Step 4: Simplify right side
    15,138.66x = 242,984,869.24
  5. Step 5: Solve for x
    x = 242,984,869.24/15,138.66
  6. Step 6: Final answer
    x = 16,050.62

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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.