Home / 10,276.56-15,420.60-5,082.48

Finding the Fourth Proportional to 10,276.56, 15,420.60 and 5,082.48

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Solution

The fourth proportional to 10,276.56, 15,420.60 and 5,082.48 is: 7,626.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,276.56 : 15,420.60 = 5,082.48 : x
  2. Step 2: Convert to fraction form
    10,276.56/15,420.60 = 5,082.48/x
  3. Step 3: Cross multiply
    10,276.56x = 15,420.60 × 5,082.48
  4. Step 4: Simplify right side
    10,276.56x = 78,374,891.09
  5. Step 5: Solve for x
    x = 78,374,891.09/10,276.56
  6. Step 6: Final answer
    x = 7,626.57

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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.