Home / 8,115.57-11,192.04-5,126.13

Finding the Fourth Proportional to 8,115.57, 11,192.04 and 5,126.13

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Solution

The fourth proportional to 8,115.57, 11,192.04 and 5,126.13 is: 7,069.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.57 : 11,192.04 = 5,126.13 : x
  2. Step 2: Convert to fraction form
    8,115.57/11,192.04 = 5,126.13/x
  3. Step 3: Cross multiply
    8,115.57x = 11,192.04 × 5,126.13
  4. Step 4: Simplify right side
    8,115.57x = 57,371,852.01
  5. Step 5: Solve for x
    x = 57,371,852.01/8,115.57
  6. Step 6: Final answer
    x = 7,069.36

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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.