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Finding the Fourth Proportional to 8,088.16, 12,138 and 3,472.48

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Solution

The fourth proportional to 8,088.16, 12,138 and 3,472.48 is: 5,211.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,088.16 : 12,138 = 3,472.48 : x
  2. Step 2: Convert to fraction form
    8,088.16/12,138 = 3,472.48/x
  3. Step 3: Cross multiply
    8,088.16x = 12,138 × 3,472.48
  4. Step 4: Simplify right side
    8,088.16x = 42,148,962.24
  5. Step 5: Solve for x
    x = 42,148,962.24/8,088.16
  6. Step 6: Final answer
    x = 5,211.19

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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.