Home / 9,155.59-12,634.63-5,177.48

Finding the Fourth Proportional to 9,155.59, 12,634.63 and 5,177.48

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Solution

The fourth proportional to 9,155.59, 12,634.63 and 5,177.48 is: 7,144.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.59 : 12,634.63 = 5,177.48 : x
  2. Step 2: Convert to fraction form
    9,155.59/12,634.63 = 5,177.48/x
  3. Step 3: Cross multiply
    9,155.59x = 12,634.63 × 5,177.48
  4. Step 4: Simplify right side
    9,155.59x = 65,415,544.13
  5. Step 5: Solve for x
    x = 65,415,544.13/9,155.59
  6. Step 6: Final answer
    x = 7,144.87

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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.