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Finding the Fourth Proportional to 18,792, 25,926.51 and 10,719.86

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Solution

The fourth proportional to 18,792, 25,926.51 and 10,719.86 is: 14,789.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792 : 25,926.51 = 10,719.86 : x
  2. Step 2: Convert to fraction form
    18,792/25,926.51 = 10,719.86/x
  3. Step 3: Cross multiply
    18,792x = 25,926.51 × 10,719.86
  4. Step 4: Simplify right side
    18,792x = 277,928,468.06
  5. Step 5: Solve for x
    x = 277,928,468.06/18,792
  6. Step 6: Final answer
    x = 14,789.72

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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.