Home / 16,687.86-25,044.12-13,440.15

Finding the Fourth Proportional to 16,687.86, 25,044.12 and 13,440.15

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Solution

The fourth proportional to 16,687.86, 25,044.12 and 13,440.15 is: 20,170.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,687.86 : 25,044.12 = 13,440.15 : x
  2. Step 2: Convert to fraction form
    16,687.86/25,044.12 = 13,440.15/x
  3. Step 3: Cross multiply
    16,687.86x = 25,044.12 × 13,440.15
  4. Step 4: Simplify right side
    16,687.86x = 336,596,729.42
  5. Step 5: Solve for x
    x = 336,596,729.42/16,687.86
  6. Step 6: Final answer
    x = 20,170.16

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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.