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Finding the Fourth Proportional to 12,711.16, 19,059.02 and 5,689.84

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Solution

The fourth proportional to 12,711.16, 19,059.02 and 5,689.84 is: 8,531.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.16 : 19,059.02 = 5,689.84 : x
  2. Step 2: Convert to fraction form
    12,711.16/19,059.02 = 5,689.84/x
  3. Step 3: Cross multiply
    12,711.16x = 19,059.02 × 5,689.84
  4. Step 4: Simplify right side
    12,711.16x = 108,442,774.36
  5. Step 5: Solve for x
    x = 108,442,774.36/12,711.16
  6. Step 6: Final answer
    x = 8,531.30

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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.