Home / 11,431.40-15,773.80-6,650.04

Finding the Fourth Proportional to 11,431.40, 15,773.80 and 6,650.04

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Solution

The fourth proportional to 11,431.40, 15,773.80 and 6,650.04 is: 9,176.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.40 : 15,773.80 = 6,650.04 : x
  2. Step 2: Convert to fraction form
    11,431.40/15,773.80 = 6,650.04/x
  3. Step 3: Cross multiply
    11,431.40x = 15,773.80 × 6,650.04
  4. Step 4: Simplify right side
    11,431.40x = 104,896,400.95
  5. Step 5: Solve for x
    x = 104,896,400.95/11,431.40
  6. Step 6: Final answer
    x = 9,176.16

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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.