Home / 13,213.60-19,818.48-3,851.11

Finding the Fourth Proportional to 13,213.60, 19,818.48 and 3,851.11

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Solution

The fourth proportional to 13,213.60, 19,818.48 and 3,851.11 is: 5,776.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.60 : 19,818.48 = 3,851.11 : x
  2. Step 2: Convert to fraction form
    13,213.60/19,818.48 = 3,851.11/x
  3. Step 3: Cross multiply
    13,213.60x = 19,818.48 × 3,851.11
  4. Step 4: Simplify right side
    13,213.60x = 76,323,135.84
  5. Step 5: Solve for x
    x = 76,323,135.84/13,213.60
  6. Step 6: Final answer
    x = 5,776.10

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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.