Home / 13,770.56-20,658.27-4,888.61

Finding the Fourth Proportional to 13,770.56, 20,658.27 and 4,888.61

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Solution

The fourth proportional to 13,770.56, 20,658.27 and 4,888.61 is: 7,333.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.56 : 20,658.27 = 4,888.61 : x
  2. Step 2: Convert to fraction form
    13,770.56/20,658.27 = 4,888.61/x
  3. Step 3: Cross multiply
    13,770.56x = 20,658.27 × 4,888.61
  4. Step 4: Simplify right side
    13,770.56x = 100,990,225.30
  5. Step 5: Solve for x
    x = 100,990,225.30/13,770.56
  6. Step 6: Final answer
    x = 7,333.78

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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.