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Finding the Fourth Proportional to 10,088, 15,132 and 3,162.72

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Solution

The fourth proportional to 10,088, 15,132 and 3,162.72 is: 4,744.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,088 : 15,132 = 3,162.72 : x
  2. Step 2: Convert to fraction form
    10,088/15,132 = 3,162.72/x
  3. Step 3: Cross multiply
    10,088x = 15,132 × 3,162.72
  4. Step 4: Simplify right side
    10,088x = 47,858,279.04
  5. Step 5: Solve for x
    x = 47,858,279.04/10,088
  6. Step 6: Final answer
    x = 4,744.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.