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Finding the Fourth Proportional to 8,671.32, 13,011.03 and 4,509.14

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Solution

The fourth proportional to 8,671.32, 13,011.03 and 4,509.14 is: 6,765.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.32 : 13,011.03 = 4,509.14 : x
  2. Step 2: Convert to fraction form
    8,671.32/13,011.03 = 4,509.14/x
  3. Step 3: Cross multiply
    8,671.32x = 13,011.03 × 4,509.14
  4. Step 4: Simplify right side
    8,671.32x = 58,668,490.76
  5. Step 5: Solve for x
    x = 58,668,490.76/8,671.32
  6. Step 6: Final answer
    x = 6,765.81

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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.