Home / 8,107.47-12,160.76-2,485.13

Finding the Fourth Proportional to 8,107.47, 12,160.76 and 2,485.13

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Solution

The fourth proportional to 8,107.47, 12,160.76 and 2,485.13 is: 3,727.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107.47 : 12,160.76 = 2,485.13 : x
  2. Step 2: Convert to fraction form
    8,107.47/12,160.76 = 2,485.13/x
  3. Step 3: Cross multiply
    8,107.47x = 12,160.76 × 2,485.13
  4. Step 4: Simplify right side
    8,107.47x = 30,221,069.50
  5. Step 5: Solve for x
    x = 30,221,069.50/8,107.47
  6. Step 6: Final answer
    x = 3,727.56

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Half scale
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Double scale
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Similar ratio
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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.