Home / 8,177.76-11,284.80-4,642.08

Finding the Fourth Proportional to 8,177.76, 11,284.80 and 4,642.08

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Solution

The fourth proportional to 8,177.76, 11,284.80 and 4,642.08 is: 6,405.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,177.76 : 11,284.80 = 4,642.08 : x
  2. Step 2: Convert to fraction form
    8,177.76/11,284.80 = 4,642.08/x
  3. Step 3: Cross multiply
    8,177.76x = 11,284.80 × 4,642.08
  4. Step 4: Simplify right side
    8,177.76x = 52,384,944.38
  5. Step 5: Solve for x
    x = 52,384,944.38/8,177.76
  6. Step 6: Final answer
    x = 6,405.78

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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.