Home / 8,814.12-13,221.22-2,970.78

Finding the Fourth Proportional to 8,814.12, 13,221.22 and 2,970.78

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Solution

The fourth proportional to 8,814.12, 13,221.22 and 2,970.78 is: 4,456.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.12 : 13,221.22 = 2,970.78 : x
  2. Step 2: Convert to fraction form
    8,814.12/13,221.22 = 2,970.78/x
  3. Step 3: Cross multiply
    8,814.12x = 13,221.22 × 2,970.78
  4. Step 4: Simplify right side
    8,814.12x = 39,277,335.95
  5. Step 5: Solve for x
    x = 39,277,335.95/8,814.12
  6. Step 6: Final answer
    x = 4,456.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.