Home / 8,605.20-11,877.72-5,069.55

Finding the Fourth Proportional to 8,605.20, 11,877.72 and 5,069.55

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Solution

The fourth proportional to 8,605.20, 11,877.72 and 5,069.55 is: 6,997.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.20 : 11,877.72 = 5,069.55 : x
  2. Step 2: Convert to fraction form
    8,605.20/11,877.72 = 5,069.55/x
  3. Step 3: Cross multiply
    8,605.20x = 11,877.72 × 5,069.55
  4. Step 4: Simplify right side
    8,605.20x = 60,214,695.43
  5. Step 5: Solve for x
    x = 60,214,695.43/8,605.20
  6. Step 6: Final answer
    x = 6,997.48

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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.