Home / 13,405.78-20,102.18-4,044.06

Finding the Fourth Proportional to 13,405.78, 20,102.18 and 4,044.06

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Solution

The fourth proportional to 13,405.78, 20,102.18 and 4,044.06 is: 6,064.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405.78 : 20,102.18 = 4,044.06 : x
  2. Step 2: Convert to fraction form
    13,405.78/20,102.18 = 4,044.06/x
  3. Step 3: Cross multiply
    13,405.78x = 20,102.18 × 4,044.06
  4. Step 4: Simplify right side
    13,405.78x = 81,294,422.05
  5. Step 5: Solve for x
    x = 81,294,422.05/13,405.78
  6. Step 6: Final answer
    x = 6,064.13

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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.