Home / 11,140.16-15,373.92-6,172.16

Finding the Fourth Proportional to 11,140.16, 15,373.92 and 6,172.16

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Solution

The fourth proportional to 11,140.16, 15,373.92 and 6,172.16 is: 8,517.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.16 : 15,373.92 = 6,172.16 : x
  2. Step 2: Convert to fraction form
    11,140.16/15,373.92 = 6,172.16/x
  3. Step 3: Cross multiply
    11,140.16x = 15,373.92 × 6,172.16
  4. Step 4: Simplify right side
    11,140.16x = 94,890,294.07
  5. Step 5: Solve for x
    x = 94,890,294.07/11,140.16
  6. Step 6: Final answer
    x = 8,517.86

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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.