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Finding the Fourth Proportional to 18,960, 26,162.88 and 10,575.04

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Solution

The fourth proportional to 18,960, 26,162.88 and 10,575.04 is: 14,592.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,960 : 26,162.88 = 10,575.04 : x
  2. Step 2: Convert to fraction form
    18,960/26,162.88 = 10,575.04/x
  3. Step 3: Cross multiply
    18,960x = 26,162.88 × 10,575.04
  4. Step 4: Simplify right side
    18,960x = 276,673,502.52
  5. Step 5: Solve for x
    x = 276,673,502.52/18,960
  6. Step 6: Final answer
    x = 14,592.48

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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.