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Finding the Fourth Proportional to 18,873.47, 26,044.76 and 10,489.79

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Solution

The fourth proportional to 18,873.47, 26,044.76 and 10,489.79 is: 14,475.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873.47 : 26,044.76 = 10,489.79 : x
  2. Step 2: Convert to fraction form
    18,873.47/26,044.76 = 10,489.79/x
  3. Step 3: Cross multiply
    18,873.47x = 26,044.76 × 10,489.79
  4. Step 4: Simplify right side
    18,873.47x = 273,204,010.55
  5. Step 5: Solve for x
    x = 273,204,010.55/18,873.47
  6. Step 6: Final answer
    x = 14,475.56

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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.