Home / 18,834.57-26,009.28-12,131.88

Finding the Fourth Proportional to 18,834.57, 26,009.28 and 12,131.88

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Solution

The fourth proportional to 18,834.57, 26,009.28 and 12,131.88 is: 16,753.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.57 : 26,009.28 = 12,131.88 : x
  2. Step 2: Convert to fraction form
    18,834.57/26,009.28 = 12,131.88/x
  3. Step 3: Cross multiply
    18,834.57x = 26,009.28 × 12,131.88
  4. Step 4: Simplify right side
    18,834.57x = 315,541,463.85
  5. Step 5: Solve for x
    x = 315,541,463.85/18,834.57
  6. Step 6: Final answer
    x = 16,753.31

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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.