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Finding the Fourth Proportional to 18,637, 25,719.30 and 10,253.68

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Solution

The fourth proportional to 18,637, 25,719.30 and 10,253.68 is: 14,150.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637 : 25,719.30 = 10,253.68 : x
  2. Step 2: Convert to fraction form
    18,637/25,719.30 = 10,253.68/x
  3. Step 3: Cross multiply
    18,637x = 25,719.30 × 10,253.68
  4. Step 4: Simplify right side
    18,637x = 263,717,472.02
  5. Step 5: Solve for x
    x = 263,717,472.02/18,637
  6. Step 6: Final answer
    x = 14,150.21

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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.