Home / 8,127.24-12,191.28-2,581.01

Finding the Fourth Proportional to 8,127.24, 12,191.28 and 2,581.01

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Solution

The fourth proportional to 8,127.24, 12,191.28 and 2,581.01 is: 3,871.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.24 : 12,191.28 = 2,581.01 : x
  2. Step 2: Convert to fraction form
    8,127.24/12,191.28 = 2,581.01/x
  3. Step 3: Cross multiply
    8,127.24x = 12,191.28 × 2,581.01
  4. Step 4: Simplify right side
    8,127.24x = 31,465,859.25
  5. Step 5: Solve for x
    x = 31,465,859.25/8,127.24
  6. Step 6: Final answer
    x = 3,871.66

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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.