Home / 13,747.85-20,607.33-8,754.06

Finding the Fourth Proportional to 13,747.85, 20,607.33 and 8,754.06

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Solution

The fourth proportional to 13,747.85, 20,607.33 and 8,754.06 is: 13,121.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.85 : 20,607.33 = 8,754.06 : x
  2. Step 2: Convert to fraction form
    13,747.85/20,607.33 = 8,754.06/x
  3. Step 3: Cross multiply
    13,747.85x = 20,607.33 × 8,754.06
  4. Step 4: Simplify right side
    13,747.85x = 180,397,803.26
  5. Step 5: Solve for x
    x = 180,397,803.26/13,747.85
  6. Step 6: Final answer
    x = 13,121.89

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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.