Home / 10,584.60-15,876.90-3,190.20

Finding the Fourth Proportional to 10,584.60, 15,876.90 and 3,190.20

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Solution

The fourth proportional to 10,584.60, 15,876.90 and 3,190.20 is: 4,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,584.60 : 15,876.90 = 3,190.20 : x
  2. Step 2: Convert to fraction form
    10,584.60/15,876.90 = 3,190.20/x
  3. Step 3: Cross multiply
    10,584.60x = 15,876.90 × 3,190.20
  4. Step 4: Simplify right side
    10,584.60x = 50,650,486.38
  5. Step 5: Solve for x
    x = 50,650,486.38/10,584.60
  6. Step 6: Final answer
    x = 4,785.30

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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.