Home / 18,108.72-24,990.12-10,151.28

Finding the Fourth Proportional to 18,108.72, 24,990.12 and 10,151.28

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Solution

The fourth proportional to 18,108.72, 24,990.12 and 10,151.28 is: 14,008.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.72 : 24,990.12 = 10,151.28 : x
  2. Step 2: Convert to fraction form
    18,108.72/24,990.12 = 10,151.28/x
  3. Step 3: Cross multiply
    18,108.72x = 24,990.12 × 10,151.28
  4. Step 4: Simplify right side
    18,108.72x = 253,681,705.35
  5. Step 5: Solve for x
    x = 253,681,705.35/18,108.72
  6. Step 6: Final answer
    x = 14,008.81

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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.