Home / 10,347.20-15,511.18-3,771.89

Finding the Fourth Proportional to 10,347.20, 15,511.18 and 3,771.89

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Solution

The fourth proportional to 10,347.20, 15,511.18 and 3,771.89 is: 5,654.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.20 : 15,511.18 = 3,771.89 : x
  2. Step 2: Convert to fraction form
    10,347.20/15,511.18 = 3,771.89/x
  3. Step 3: Cross multiply
    10,347.20x = 15,511.18 × 3,771.89
  4. Step 4: Simplify right side
    10,347.20x = 58,506,464.73
  5. Step 5: Solve for x
    x = 58,506,464.73/10,347.20
  6. Step 6: Final answer
    x = 5,654.33

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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.