Home / 18,835.42-25,996.29-12,864.88

Finding the Fourth Proportional to 18,835.42, 25,996.29 and 12,864.88

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Solution

The fourth proportional to 18,835.42, 25,996.29 and 12,864.88 is: 17,755.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.42 : 25,996.29 = 12,864.88 : x
  2. Step 2: Convert to fraction form
    18,835.42/25,996.29 = 12,864.88/x
  3. Step 3: Cross multiply
    18,835.42x = 25,996.29 × 12,864.88
  4. Step 4: Simplify right side
    18,835.42x = 334,439,151.30
  5. Step 5: Solve for x
    x = 334,439,151.30/18,835.42
  6. Step 6: Final answer
    x = 17,755.86

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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.