Home / 8,091.13-12,134.47-5,125.13

Finding the Fourth Proportional to 8,091.13, 12,134.47 and 5,125.13

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Solution

The fourth proportional to 8,091.13, 12,134.47 and 5,125.13 is: 7,686.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.13 : 12,134.47 = 5,125.13 : x
  2. Step 2: Convert to fraction form
    8,091.13/12,134.47 = 5,125.13/x
  3. Step 3: Cross multiply
    8,091.13x = 12,134.47 × 5,125.13
  4. Step 4: Simplify right side
    8,091.13x = 62,190,736.23
  5. Step 5: Solve for x
    x = 62,190,736.23/8,091.13
  6. Step 6: Final answer
    x = 7,686.29

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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.