Home / 9,119.32-13,655.25-8,565.21

Finding the Fourth Proportional to 9,119.32, 13,655.25 and 8,565.21

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Solution

The fourth proportional to 9,119.32, 13,655.25 and 8,565.21 is: 12,825.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.32 : 13,655.25 = 8,565.21 : x
  2. Step 2: Convert to fraction form
    9,119.32/13,655.25 = 8,565.21/x
  3. Step 3: Cross multiply
    9,119.32x = 13,655.25 × 8,565.21
  4. Step 4: Simplify right side
    9,119.32x = 116,960,083.85
  5. Step 5: Solve for x
    x = 116,960,083.85/9,119.32
  6. Step 6: Final answer
    x = 12,825.53

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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.