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Finding the Fourth Proportional to 9,020.80, 12,449.10 and 5,041.90

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Solution

The fourth proportional to 9,020.80, 12,449.10 and 5,041.90 is: 6,958.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,020.80 : 12,449.10 = 5,041.90 : x
  2. Step 2: Convert to fraction form
    9,020.80/12,449.10 = 5,041.90/x
  3. Step 3: Cross multiply
    9,020.80x = 12,449.10 × 5,041.90
  4. Step 4: Simplify right side
    9,020.80x = 62,767,117.29
  5. Step 5: Solve for x
    x = 62,767,117.29/9,020.80
  6. Step 6: Final answer
    x = 6,958.04

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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.