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Finding the Fourth Proportional to 8,260.80, 12,392.16 and 2,995.20

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Solution

The fourth proportional to 8,260.80, 12,392.16 and 2,995.20 is: 4,493.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.80 : 12,392.16 = 2,995.20 : x
  2. Step 2: Convert to fraction form
    8,260.80/12,392.16 = 2,995.20/x
  3. Step 3: Cross multiply
    8,260.80x = 12,392.16 × 2,995.20
  4. Step 4: Simplify right side
    8,260.80x = 37,116,997.63
  5. Step 5: Solve for x
    x = 37,116,997.63/8,260.80
  6. Step 6: Final answer
    x = 4,493.15

Related Problems

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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.