Home / 8,772.20-12,104.23-4,995.43

Finding the Fourth Proportional to 8,772.20, 12,104.23 and 4,995.43

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Solution

The fourth proportional to 8,772.20, 12,104.23 and 4,995.43 is: 6,892.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.20 : 12,104.23 = 4,995.43 : x
  2. Step 2: Convert to fraction form
    8,772.20/12,104.23 = 4,995.43/x
  3. Step 3: Cross multiply
    8,772.20x = 12,104.23 × 4,995.43
  4. Step 4: Simplify right side
    8,772.20x = 60,465,808.69
  5. Step 5: Solve for x
    x = 60,465,808.69/8,772.20
  6. Step 6: Final answer
    x = 6,892.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.