Home / 13,549.32-20,318.76-5,432.45

Finding the Fourth Proportional to 13,549.32, 20,318.76 and 5,432.45

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Solution

The fourth proportional to 13,549.32, 20,318.76 and 5,432.45 is: 8,146.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.32 : 20,318.76 = 5,432.45 : x
  2. Step 2: Convert to fraction form
    13,549.32/20,318.76 = 5,432.45/x
  3. Step 3: Cross multiply
    13,549.32x = 20,318.76 × 5,432.45
  4. Step 4: Simplify right side
    13,549.32x = 110,380,546.17
  5. Step 5: Solve for x
    x = 110,380,546.17/13,549.32
  6. Step 6: Final answer
    x = 8,146.57

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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.