Home / 13,436.43-20,157.54-4,077.20

Finding the Fourth Proportional to 13,436.43, 20,157.54 and 4,077.20

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Solution

The fourth proportional to 13,436.43, 20,157.54 and 4,077.20 is: 6,116.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.43 : 20,157.54 = 4,077.20 : x
  2. Step 2: Convert to fraction form
    13,436.43/20,157.54 = 4,077.20/x
  3. Step 3: Cross multiply
    13,436.43x = 20,157.54 × 4,077.20
  4. Step 4: Simplify right side
    13,436.43x = 82,186,301.70
  5. Step 5: Solve for x
    x = 82,186,301.70/13,436.43
  6. Step 6: Final answer
    x = 6,116.68

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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.