Home / 8,821.56-13,237.54-3,278.80

Finding the Fourth Proportional to 8,821.56, 13,237.54 and 3,278.80

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Solution

The fourth proportional to 8,821.56, 13,237.54 and 3,278.80 is: 4,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.56 : 13,237.54 = 3,278.80 : x
  2. Step 2: Convert to fraction form
    8,821.56/13,237.54 = 3,278.80/x
  3. Step 3: Cross multiply
    8,821.56x = 13,237.54 × 3,278.80
  4. Step 4: Simplify right side
    8,821.56x = 43,403,246.15
  5. Step 5: Solve for x
    x = 43,403,246.15/8,821.56
  6. Step 6: Final answer
    x = 4,920.13

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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.