Home / 13,447.44-20,171.52-5,126.40

Finding the Fourth Proportional to 13,447.44, 20,171.52 and 5,126.40

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Solution

The fourth proportional to 13,447.44, 20,171.52 and 5,126.40 is: 7,689.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.44 : 20,171.52 = 5,126.40 : x
  2. Step 2: Convert to fraction form
    13,447.44/20,171.52 = 5,126.40/x
  3. Step 3: Cross multiply
    13,447.44x = 20,171.52 × 5,126.40
  4. Step 4: Simplify right side
    13,447.44x = 103,407,280.13
  5. Step 5: Solve for x
    x = 103,407,280.13/13,447.44
  6. Step 6: Final answer
    x = 7,689.74

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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.