Home / 13,422.46-20,113.16-5,627.02

Finding the Fourth Proportional to 13,422.46, 20,113.16 and 5,627.02

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Solution

The fourth proportional to 13,422.46, 20,113.16 and 5,627.02 is: 8,431.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,422.46 : 20,113.16 = 5,627.02 : x
  2. Step 2: Convert to fraction form
    13,422.46/20,113.16 = 5,627.02/x
  3. Step 3: Cross multiply
    13,422.46x = 20,113.16 × 5,627.02
  4. Step 4: Simplify right side
    13,422.46x = 113,177,153.58
  5. Step 5: Solve for x
    x = 113,177,153.58/13,422.46
  6. Step 6: Final answer
    x = 8,431.92

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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.