Home / 6,909.17-10,359.90-4,720.55

Finding the Fourth Proportional to 6,909.17, 10,359.90 and 4,720.55

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Solution

The fourth proportional to 6,909.17, 10,359.90 and 4,720.55 is: 7,078.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.17 : 10,359.90 = 4,720.55 : x
  2. Step 2: Convert to fraction form
    6,909.17/10,359.90 = 4,720.55/x
  3. Step 3: Cross multiply
    6,909.17x = 10,359.90 × 4,720.55
  4. Step 4: Simplify right side
    6,909.17x = 48,904,374.15
  5. Step 5: Solve for x
    x = 48,904,374.15/6,909.17
  6. Step 6: Final answer
    x = 7,078.19

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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.