Home / 9,155.58-12,634.20-5,177.49

Finding the Fourth Proportional to 9,155.58, 12,634.20 and 5,177.49

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Solution

The fourth proportional to 9,155.58, 12,634.20 and 5,177.49 is: 7,144.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.58 : 12,634.20 = 5,177.49 : x
  2. Step 2: Convert to fraction form
    9,155.58/12,634.20 = 5,177.49/x
  3. Step 3: Cross multiply
    9,155.58x = 12,634.20 × 5,177.49
  4. Step 4: Simplify right side
    9,155.58x = 65,413,444.16
  5. Step 5: Solve for x
    x = 65,413,444.16/9,155.58
  6. Step 6: Final answer
    x = 7,144.65

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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.