Home / 13,902.03-20,861.24-5,143.05

Finding the Fourth Proportional to 13,902.03, 20,861.24 and 5,143.05

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Solution

The fourth proportional to 13,902.03, 20,861.24 and 5,143.05 is: 7,717.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.03 : 20,861.24 = 5,143.05 : x
  2. Step 2: Convert to fraction form
    13,902.03/20,861.24 = 5,143.05/x
  3. Step 3: Cross multiply
    13,902.03x = 20,861.24 × 5,143.05
  4. Step 4: Simplify right side
    13,902.03x = 107,290,374.67
  5. Step 5: Solve for x
    x = 107,290,374.67/13,902.03
  6. Step 6: Final answer
    x = 7,717.60

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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.