Home / 8,111.24-12,165.80-2,565.14

Finding the Fourth Proportional to 8,111.24, 12,165.80 and 2,565.14

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Solution

The fourth proportional to 8,111.24, 12,165.80 and 2,565.14 is: 3,847.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.24 : 12,165.80 = 2,565.14 : x
  2. Step 2: Convert to fraction form
    8,111.24/12,165.80 = 2,565.14/x
  3. Step 3: Cross multiply
    8,111.24x = 12,165.80 × 2,565.14
  4. Step 4: Simplify right side
    8,111.24x = 31,207,017.04
  5. Step 5: Solve for x
    x = 31,207,017.04/8,111.24
  6. Step 6: Final answer
    x = 3,847.38

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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.