Home / 9,156.15-12,636.27-5,177.97

Finding the Fourth Proportional to 9,156.15, 12,636.27 and 5,177.97

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Solution

The fourth proportional to 9,156.15, 12,636.27 and 5,177.97 is: 7,146.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.15 : 12,636.27 = 5,177.97 : x
  2. Step 2: Convert to fraction form
    9,156.15/12,636.27 = 5,177.97/x
  3. Step 3: Cross multiply
    9,156.15x = 12,636.27 × 5,177.97
  4. Step 4: Simplify right side
    9,156.15x = 65,430,226.97
  5. Step 5: Solve for x
    x = 65,430,226.97/9,156.15
  6. Step 6: Final answer
    x = 7,146.04

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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.