Home / 8,112.15-12,167.18-2,565

Finding the Fourth Proportional to 8,112.15, 12,167.18 and 2,565

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Solution

The fourth proportional to 8,112.15, 12,167.18 and 2,565 is: 3,847.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.15 : 12,167.18 = 2,565 : x
  2. Step 2: Convert to fraction form
    8,112.15/12,167.18 = 2,565/x
  3. Step 3: Cross multiply
    8,112.15x = 12,167.18 × 2,565
  4. Step 4: Simplify right side
    8,112.15x = 31,208,813.49
  5. Step 5: Solve for x
    x = 31,208,813.49/8,112.15
  6. Step 6: Final answer
    x = 3,847.17

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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.