Home / 8,565.31-12,851.12-6,119.38

Finding the Fourth Proportional to 8,565.31, 12,851.12 and 6,119.38

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Solution

The fourth proportional to 8,565.31, 12,851.12 and 6,119.38 is: 9,181.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,565.31 : 12,851.12 = 6,119.38 : x
  2. Step 2: Convert to fraction form
    8,565.31/12,851.12 = 6,119.38/x
  3. Step 3: Cross multiply
    8,565.31x = 12,851.12 × 6,119.38
  4. Step 4: Simplify right side
    8,565.31x = 78,640,886.71
  5. Step 5: Solve for x
    x = 78,640,886.71/8,565.31
  6. Step 6: Final answer
    x = 9,181.32

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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.