Home / 13,818.18-20,727.36-5,049.66

Finding the Fourth Proportional to 13,818.18, 20,727.36 and 5,049.66

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Solution

The fourth proportional to 13,818.18, 20,727.36 and 5,049.66 is: 7,574.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.18 : 20,727.36 = 5,049.66 : x
  2. Step 2: Convert to fraction form
    13,818.18/20,727.36 = 5,049.66/x
  3. Step 3: Cross multiply
    13,818.18x = 20,727.36 × 5,049.66
  4. Step 4: Simplify right side
    13,818.18x = 104,666,120.70
  5. Step 5: Solve for x
    x = 104,666,120.70/13,818.18
  6. Step 6: Final answer
    x = 7,574.52

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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.