Home / 10,190.80-15,286.20-4,995.60

Finding the Fourth Proportional to 10,190.80, 15,286.20 and 4,995.60

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Solution

The fourth proportional to 10,190.80, 15,286.20 and 4,995.60 is: 7,493.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,190.80 : 15,286.20 = 4,995.60 : x
  2. Step 2: Convert to fraction form
    10,190.80/15,286.20 = 4,995.60/x
  3. Step 3: Cross multiply
    10,190.80x = 15,286.20 × 4,995.60
  4. Step 4: Simplify right side
    10,190.80x = 76,363,740.72
  5. Step 5: Solve for x
    x = 76,363,740.72/10,190.80
  6. Step 6: Final answer
    x = 7,493.40

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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.