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Finding the Fourth Proportional to 8,966.60, 13,452.30 and 7,999.40

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Solution

The fourth proportional to 8,966.60, 13,452.30 and 7,999.40 is: 12,001.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.60 : 13,452.30 = 7,999.40 : x
  2. Step 2: Convert to fraction form
    8,966.60/13,452.30 = 7,999.40/x
  3. Step 3: Cross multiply
    8,966.60x = 13,452.30 × 7,999.40
  4. Step 4: Simplify right side
    8,966.60x = 107,610,328.62
  5. Step 5: Solve for x
    x = 107,610,328.62/8,966.60
  6. Step 6: Final answer
    x = 12,001.24

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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.