Home / 8,646.20-12,969.36-3,711.68

Finding the Fourth Proportional to 8,646.20, 12,969.36 and 3,711.68

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Solution

The fourth proportional to 8,646.20, 12,969.36 and 3,711.68 is: 5,567.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.20 : 12,969.36 = 3,711.68 : x
  2. Step 2: Convert to fraction form
    8,646.20/12,969.36 = 3,711.68/x
  3. Step 3: Cross multiply
    8,646.20x = 12,969.36 × 3,711.68
  4. Step 4: Simplify right side
    8,646.20x = 48,138,114.12
  5. Step 5: Solve for x
    x = 48,138,114.12/8,646.20
  6. Step 6: Final answer
    x = 5,567.55

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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.