Home / 8,677.40-12,996.66-5,207.48

Finding the Fourth Proportional to 8,677.40, 12,996.66 and 5,207.48

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Solution

The fourth proportional to 8,677.40, 12,996.66 and 5,207.48 is: 7,799.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.40 : 12,996.66 = 5,207.48 : x
  2. Step 2: Convert to fraction form
    8,677.40/12,996.66 = 5,207.48/x
  3. Step 3: Cross multiply
    8,677.40x = 12,996.66 × 5,207.48
  4. Step 4: Simplify right side
    8,677.40x = 67,679,847.02
  5. Step 5: Solve for x
    x = 67,679,847.02/8,677.40
  6. Step 6: Final answer
    x = 7,799.55

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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.