Home / 10,347.38-15,523.49-3,421.88

Finding the Fourth Proportional to 10,347.38, 15,523.49 and 3,421.88

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Solution

The fourth proportional to 10,347.38, 15,523.49 and 3,421.88 is: 5,133.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.38 : 15,523.49 = 3,421.88 : x
  2. Step 2: Convert to fraction form
    10,347.38/15,523.49 = 3,421.88/x
  3. Step 3: Cross multiply
    10,347.38x = 15,523.49 × 3,421.88
  4. Step 4: Simplify right side
    10,347.38x = 53,119,519.96
  5. Step 5: Solve for x
    x = 53,119,519.96/10,347.38
  6. Step 6: Final answer
    x = 5,133.62

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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.