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Finding the Fourth Proportional to 8,589.32, 11,853.11 and 4,812.47

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Solution

The fourth proportional to 8,589.32, 11,853.11 and 4,812.47 is: 6,641.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.32 : 11,853.11 = 4,812.47 : x
  2. Step 2: Convert to fraction form
    8,589.32/11,853.11 = 4,812.47/x
  3. Step 3: Cross multiply
    8,589.32x = 11,853.11 × 4,812.47
  4. Step 4: Simplify right side
    8,589.32x = 57,042,652.95
  5. Step 5: Solve for x
    x = 57,042,652.95/8,589.32
  6. Step 6: Final answer
    x = 6,641.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.