Home / 13,522.03-20,233.70-7,978.03

Finding the Fourth Proportional to 13,522.03, 20,233.70 and 7,978.03

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Solution

The fourth proportional to 13,522.03, 20,233.70 and 7,978.03 is: 11,937.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.03 : 20,233.70 = 7,978.03 : x
  2. Step 2: Convert to fraction form
    13,522.03/20,233.70 = 7,978.03/x
  3. Step 3: Cross multiply
    13,522.03x = 20,233.70 × 7,978.03
  4. Step 4: Simplify right side
    13,522.03x = 161,425,065.61
  5. Step 5: Solve for x
    x = 161,425,065.61/13,522.03
  6. Step 6: Final answer
    x = 11,937.93

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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.