Home / 18,644.17-25,729.04-10,686.86

Finding the Fourth Proportional to 18,644.17, 25,729.04 and 10,686.86

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Solution

The fourth proportional to 18,644.17, 25,729.04 and 10,686.86 is: 14,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.17 : 25,729.04 = 10,686.86 : x
  2. Step 2: Convert to fraction form
    18,644.17/25,729.04 = 10,686.86/x
  3. Step 3: Cross multiply
    18,644.17x = 25,729.04 × 10,686.86
  4. Step 4: Simplify right side
    18,644.17x = 274,962,648.41
  5. Step 5: Solve for x
    x = 274,962,648.41/18,644.17
  6. Step 6: Final answer
    x = 14,747.92

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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.