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Finding the Fourth Proportional to 8,677.80, 13,016.70 and 3,132.84

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Solution

The fourth proportional to 8,677.80, 13,016.70 and 3,132.84 is: 4,699.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.80 : 13,016.70 = 3,132.84 : x
  2. Step 2: Convert to fraction form
    8,677.80/13,016.70 = 3,132.84/x
  3. Step 3: Cross multiply
    8,677.80x = 13,016.70 × 3,132.84
  4. Step 4: Simplify right side
    8,677.80x = 40,779,287.24
  5. Step 5: Solve for x
    x = 40,779,287.24/8,677.80
  6. Step 6: Final answer
    x = 4,699.27

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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.