Home / 10,480.56-15,720.85-3,085.10

Finding the Fourth Proportional to 10,480.56, 15,720.85 and 3,085.10

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Solution

The fourth proportional to 10,480.56, 15,720.85 and 3,085.10 is: 4,627.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,480.56 : 15,720.85 = 3,085.10 : x
  2. Step 2: Convert to fraction form
    10,480.56/15,720.85 = 3,085.10/x
  3. Step 3: Cross multiply
    10,480.56x = 15,720.85 × 3,085.10
  4. Step 4: Simplify right side
    10,480.56x = 48,500,378.54
  5. Step 5: Solve for x
    x = 48,500,378.54/10,480.56
  6. Step 6: Final answer
    x = 4,627.65

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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.