Home / 9,872.15-14,799.85-4,321.28

Finding the Fourth Proportional to 9,872.15, 14,799.85 and 4,321.28

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Solution

The fourth proportional to 9,872.15, 14,799.85 and 4,321.28 is: 6,478.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,872.15 : 14,799.85 = 4,321.28 : x
  2. Step 2: Convert to fraction form
    9,872.15/14,799.85 = 4,321.28/x
  3. Step 3: Cross multiply
    9,872.15x = 14,799.85 × 4,321.28
  4. Step 4: Simplify right side
    9,872.15x = 63,954,322.00
  5. Step 5: Solve for x
    x = 63,954,322.00/9,872.15
  6. Step 6: Final answer
    x = 6,478.26

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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.