Home / 9,155.88-12,631.54-5,972.92

Finding the Fourth Proportional to 9,155.88, 12,631.54 and 5,972.92

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Solution

The fourth proportional to 9,155.88, 12,631.54 and 5,972.92 is: 8,240.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.88 : 12,631.54 = 5,972.92 : x
  2. Step 2: Convert to fraction form
    9,155.88/12,631.54 = 5,972.92/x
  3. Step 3: Cross multiply
    9,155.88x = 12,631.54 × 5,972.92
  4. Step 4: Simplify right side
    9,155.88x = 75,447,177.90
  5. Step 5: Solve for x
    x = 75,447,177.90/9,155.88
  6. Step 6: Final answer
    x = 8,240.30

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Half scale
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Double scale
Find fourth proportional to 9,156.88, 12,632.92 and 5,973.92
Similar ratio
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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.