Home / 13,432.74-20,151.27-5,643.78

Finding the Fourth Proportional to 13,432.74, 20,151.27 and 5,643.78

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Solution

The fourth proportional to 13,432.74, 20,151.27 and 5,643.78 is: 8,466.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.74 : 20,151.27 = 5,643.78 : x
  2. Step 2: Convert to fraction form
    13,432.74/20,151.27 = 5,643.78/x
  3. Step 3: Cross multiply
    13,432.74x = 20,151.27 × 5,643.78
  4. Step 4: Simplify right side
    13,432.74x = 113,729,334.60
  5. Step 5: Solve for x
    x = 113,729,334.60/13,432.74
  6. Step 6: Final answer
    x = 8,466.58

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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.