Home / 8,853.20-12,218.20-5,077.70

Finding the Fourth Proportional to 8,853.20, 12,218.20 and 5,077.70

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Solution

The fourth proportional to 8,853.20, 12,218.20 and 5,077.70 is: 7,007.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,853.20 : 12,218.20 = 5,077.70 : x
  2. Step 2: Convert to fraction form
    8,853.20/12,218.20 = 5,077.70/x
  3. Step 3: Cross multiply
    8,853.20x = 12,218.20 × 5,077.70
  4. Step 4: Simplify right side
    8,853.20x = 62,040,354.14
  5. Step 5: Solve for x
    x = 62,040,354.14/8,853.20
  6. Step 6: Final answer
    x = 7,007.68

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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.