Home / 8,115.95-11,200.15-4,761.18

Finding the Fourth Proportional to 8,115.95, 11,200.15 and 4,761.18

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Solution

The fourth proportional to 8,115.95, 11,200.15 and 4,761.18 is: 6,570.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.95 : 11,200.15 = 4,761.18 : x
  2. Step 2: Convert to fraction form
    8,115.95/11,200.15 = 4,761.18/x
  3. Step 3: Cross multiply
    8,115.95x = 11,200.15 × 4,761.18
  4. Step 4: Simplify right side
    8,115.95x = 53,325,936.13
  5. Step 5: Solve for x
    x = 53,325,936.13/8,115.95
  6. Step 6: Final answer
    x = 6,570.51

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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.