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Finding the Fourth Proportional to 18,758.04, 25,885.08 and 10,374

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Solution

The fourth proportional to 18,758.04, 25,885.08 and 10,374 is: 14,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.04 : 25,885.08 = 10,374 : x
  2. Step 2: Convert to fraction form
    18,758.04/25,885.08 = 10,374/x
  3. Step 3: Cross multiply
    18,758.04x = 25,885.08 × 10,374
  4. Step 4: Simplify right side
    18,758.04x = 268,531,819.92
  5. Step 5: Solve for x
    x = 268,531,819.92/18,758.04
  6. Step 6: Final answer
    x = 14,315.56

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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.