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Finding the Fourth Proportional to 8,445.83, 12,668.75 and 7,932.03

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Solution

The fourth proportional to 8,445.83, 12,668.75 and 7,932.03 is: 11,898.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.83 : 12,668.75 = 7,932.03 : x
  2. Step 2: Convert to fraction form
    8,445.83/12,668.75 = 7,932.03/x
  3. Step 3: Cross multiply
    8,445.83x = 12,668.75 × 7,932.03
  4. Step 4: Simplify right side
    8,445.83x = 100,488,865.40
  5. Step 5: Solve for x
    x = 100,488,865.40/8,445.83
  6. Step 6: Final answer
    x = 11,898.05

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Similar ratio
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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.