Home / 16,686.86-25,042.62-13,439.15

Finding the Fourth Proportional to 16,686.86, 25,042.62 and 13,439.15

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Solution

The fourth proportional to 16,686.86, 25,042.62 and 13,439.15 is: 20,168.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,686.86 : 25,042.62 = 13,439.15 : x
  2. Step 2: Convert to fraction form
    16,686.86/25,042.62 = 13,439.15/x
  3. Step 3: Cross multiply
    16,686.86x = 25,042.62 × 13,439.15
  4. Step 4: Simplify right side
    16,686.86x = 336,551,526.57
  5. Step 5: Solve for x
    x = 336,551,526.57/16,686.86
  6. Step 6: Final answer
    x = 20,168.66

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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.