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Finding the Fourth Proportional to 12,073.64, 18,115.65 and 6,530.88

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Solution

The fourth proportional to 12,073.64, 18,115.65 and 6,530.88 is: 9,799.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,073.64 : 18,115.65 = 6,530.88 : x
  2. Step 2: Convert to fraction form
    12,073.64/18,115.65 = 6,530.88/x
  3. Step 3: Cross multiply
    12,073.64x = 18,115.65 × 6,530.88
  4. Step 4: Simplify right side
    12,073.64x = 118,311,136.27
  5. Step 5: Solve for x
    x = 118,311,136.27/12,073.64
  6. Step 6: Final answer
    x = 9,799.13

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1.5x scale

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.