Home / 11,139.92-15,373.06-6,104.16

Finding the Fourth Proportional to 11,139.92, 15,373.06 and 6,104.16

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Solution

The fourth proportional to 11,139.92, 15,373.06 and 6,104.16 is: 8,423.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.92 : 15,373.06 = 6,104.16 : x
  2. Step 2: Convert to fraction form
    11,139.92/15,373.06 = 6,104.16/x
  3. Step 3: Cross multiply
    11,139.92x = 15,373.06 × 6,104.16
  4. Step 4: Simplify right side
    11,139.92x = 93,839,617.93
  5. Step 5: Solve for x
    x = 93,839,617.93/11,139.92
  6. Step 6: Final answer
    x = 8,423.72

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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.