Home / 8,517.12-11,752.32-5,377.60

Finding the Fourth Proportional to 8,517.12, 11,752.32 and 5,377.60

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Solution

The fourth proportional to 8,517.12, 11,752.32 and 5,377.60 is: 7,420.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517.12 : 11,752.32 = 5,377.60 : x
  2. Step 2: Convert to fraction form
    8,517.12/11,752.32 = 5,377.60/x
  3. Step 3: Cross multiply
    8,517.12x = 11,752.32 × 5,377.60
  4. Step 4: Simplify right side
    8,517.12x = 63,199,276.03
  5. Step 5: Solve for x
    x = 63,199,276.03/8,517.12
  6. Step 6: Final answer
    x = 7,420.26

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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.