Home / 13,546.80-20,315.88-6,972.12

Finding the Fourth Proportional to 13,546.80, 20,315.88 and 6,972.12

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Solution

The fourth proportional to 13,546.80, 20,315.88 and 6,972.12 is: 10,455.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.80 : 20,315.88 = 6,972.12 : x
  2. Step 2: Convert to fraction form
    13,546.80/20,315.88 = 6,972.12/x
  3. Step 3: Cross multiply
    13,546.80x = 20,315.88 × 6,972.12
  4. Step 4: Simplify right side
    13,546.80x = 141,644,753.27
  5. Step 5: Solve for x
    x = 141,644,753.27/13,546.80
  6. Step 6: Final answer
    x = 10,455.96

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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.