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Finding the Fourth Proportional to 8,725.66, 12,040.32 and 5,899.19

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Solution

The fourth proportional to 8,725.66, 12,040.32 and 5,899.19 is: 8,140.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.66 : 12,040.32 = 5,899.19 : x
  2. Step 2: Convert to fraction form
    8,725.66/12,040.32 = 5,899.19/x
  3. Step 3: Cross multiply
    8,725.66x = 12,040.32 × 5,899.19
  4. Step 4: Simplify right side
    8,725.66x = 71,028,045.64
  5. Step 5: Solve for x
    x = 71,028,045.64/8,725.66
  6. Step 6: Final answer
    x = 8,140.13

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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.