Home / 12,472.97-18,710.55-4,153.05

Finding the Fourth Proportional to 12,472.97, 18,710.55 and 4,153.05

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Solution

The fourth proportional to 12,472.97, 18,710.55 and 4,153.05 is: 6,229.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.97 : 18,710.55 = 4,153.05 : x
  2. Step 2: Convert to fraction form
    12,472.97/18,710.55 = 4,153.05/x
  3. Step 3: Cross multiply
    12,472.97x = 18,710.55 × 4,153.05
  4. Step 4: Simplify right side
    12,472.97x = 77,705,849.68
  5. Step 5: Solve for x
    x = 77,705,849.68/12,472.97
  6. Step 6: Final answer
    x = 6,229.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.