Home / 8,087.76-12,115.28-3,699.16

Finding the Fourth Proportional to 8,087.76, 12,115.28 and 3,699.16

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Solution

The fourth proportional to 8,087.76, 12,115.28 and 3,699.16 is: 5,541.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.76 : 12,115.28 = 3,699.16 : x
  2. Step 2: Convert to fraction form
    8,087.76/12,115.28 = 3,699.16/x
  3. Step 3: Cross multiply
    8,087.76x = 12,115.28 × 3,699.16
  4. Step 4: Simplify right side
    8,087.76x = 44,816,359.16
  5. Step 5: Solve for x
    x = 44,816,359.16/8,087.76
  6. Step 6: Final answer
    x = 5,541.26

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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.