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Finding the Fourth Proportional to 9,074.20, 13,585.70 and 8,818.20

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Solution

The fourth proportional to 9,074.20, 13,585.70 and 8,818.20 is: 13,202.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,074.20 : 13,585.70 = 8,818.20 : x
  2. Step 2: Convert to fraction form
    9,074.20/13,585.70 = 8,818.20/x
  3. Step 3: Cross multiply
    9,074.20x = 13,585.70 × 8,818.20
  4. Step 4: Simplify right side
    9,074.20x = 119,801,419.74
  5. Step 5: Solve for x
    x = 119,801,419.74/9,074.20
  6. Step 6: Final answer
    x = 13,202.42

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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.