Home / 13,580.64-20,372.85-6,186.96

Finding the Fourth Proportional to 13,580.64, 20,372.85 and 6,186.96

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Solution

The fourth proportional to 13,580.64, 20,372.85 and 6,186.96 is: 9,281.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.64 : 20,372.85 = 6,186.96 : x
  2. Step 2: Convert to fraction form
    13,580.64/20,372.85 = 6,186.96/x
  3. Step 3: Cross multiply
    13,580.64x = 20,372.85 × 6,186.96
  4. Step 4: Simplify right side
    13,580.64x = 126,046,008.04
  5. Step 5: Solve for x
    x = 126,046,008.04/13,580.64
  6. Step 6: Final answer
    x = 9,281.30

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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.