Home / 9,022.38-12,450.67-4,989.18

Finding the Fourth Proportional to 9,022.38, 12,450.67 and 4,989.18

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Solution

The fourth proportional to 9,022.38, 12,450.67 and 4,989.18 is: 6,884.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,022.38 : 12,450.67 = 4,989.18 : x
  2. Step 2: Convert to fraction form
    9,022.38/12,450.67 = 4,989.18/x
  3. Step 3: Cross multiply
    9,022.38x = 12,450.67 × 4,989.18
  4. Step 4: Simplify right side
    9,022.38x = 62,118,633.75
  5. Step 5: Solve for x
    x = 62,118,633.75/9,022.38
  6. Step 6: Final answer
    x = 6,884.95

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Half scale
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Double scale
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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.