Home / 13,885.23-20,824.12-5,119

Finding the Fourth Proportional to 13,885.23, 20,824.12 and 5,119

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Solution

The fourth proportional to 13,885.23, 20,824.12 and 5,119 is: 7,677.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885.23 : 20,824.12 = 5,119 : x
  2. Step 2: Convert to fraction form
    13,885.23/20,824.12 = 5,119/x
  3. Step 3: Cross multiply
    13,885.23x = 20,824.12 × 5,119
  4. Step 4: Simplify right side
    13,885.23x = 106,598,670.28
  5. Step 5: Solve for x
    x = 106,598,670.28/13,885.23
  6. Step 6: Final answer
    x = 7,677.13

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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.