Home / 7,391.12-11,126.61-6,737.18

Finding the Fourth Proportional to 7,391.12, 11,126.61 and 6,737.18

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Solution

The fourth proportional to 7,391.12, 11,126.61 and 6,737.18 is: 10,142.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,391.12 : 11,126.61 = 6,737.18 : x
  2. Step 2: Convert to fraction form
    7,391.12/11,126.61 = 6,737.18/x
  3. Step 3: Cross multiply
    7,391.12x = 11,126.61 × 6,737.18
  4. Step 4: Simplify right side
    7,391.12x = 74,961,974.36
  5. Step 5: Solve for x
    x = 74,961,974.36/7,391.12
  6. Step 6: Final answer
    x = 10,142.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.