Home / 16,881.18-25,337.10-8,990.30

Finding the Fourth Proportional to 16,881.18, 25,337.10 and 8,990.30

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Solution

The fourth proportional to 16,881.18, 25,337.10 and 8,990.30 is: 13,493.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,881.18 : 25,337.10 = 8,990.30 : x
  2. Step 2: Convert to fraction form
    16,881.18/25,337.10 = 8,990.30/x
  3. Step 3: Cross multiply
    16,881.18x = 25,337.10 × 8,990.30
  4. Step 4: Simplify right side
    16,881.18x = 227,788,130.13
  5. Step 5: Solve for x
    x = 227,788,130.13/16,881.18
  6. Step 6: Final answer
    x = 13,493.61

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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.