Home / 13,034.56-17,975.60-8,720.04

Finding the Fourth Proportional to 13,034.56, 17,975.60 and 8,720.04

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Solution

The fourth proportional to 13,034.56, 17,975.60 and 8,720.04 is: 12,025.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,034.56 : 17,975.60 = 8,720.04 : x
  2. Step 2: Convert to fraction form
    13,034.56/17,975.60 = 8,720.04/x
  3. Step 3: Cross multiply
    13,034.56x = 17,975.60 × 8,720.04
  4. Step 4: Simplify right side
    13,034.56x = 156,747,951.02
  5. Step 5: Solve for x
    x = 156,747,951.02/13,034.56
  6. Step 6: Final answer
    x = 12,025.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.