Home / 12,177.31-16,779.58-9,344.56

Finding the Fourth Proportional to 12,177.31, 16,779.58 and 9,344.56

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Solution

The fourth proportional to 12,177.31, 16,779.58 and 9,344.56 is: 12,876.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.31 : 16,779.58 = 9,344.56 : x
  2. Step 2: Convert to fraction form
    12,177.31/16,779.58 = 9,344.56/x
  3. Step 3: Cross multiply
    12,177.31x = 16,779.58 × 9,344.56
  4. Step 4: Simplify right side
    12,177.31x = 156,797,792.08
  5. Step 5: Solve for x
    x = 156,797,792.08/12,177.31
  6. Step 6: Final answer
    x = 12,876.23

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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.