Home / 13,522.72-20,245.12-9,988.96

Finding the Fourth Proportional to 13,522.72, 20,245.12 and 9,988.96

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Solution

The fourth proportional to 13,522.72, 20,245.12 and 9,988.96 is: 14,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.72 : 20,245.12 = 9,988.96 : x
  2. Step 2: Convert to fraction form
    13,522.72/20,245.12 = 9,988.96/x
  3. Step 3: Cross multiply
    13,522.72x = 20,245.12 × 9,988.96
  4. Step 4: Simplify right side
    13,522.72x = 202,227,693.88
  5. Step 5: Solve for x
    x = 202,227,693.88/13,522.72
  6. Step 6: Final answer
    x = 14,954.66

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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.