Home / 10,443.46-15,667.76-3,423.86

Finding the Fourth Proportional to 10,443.46, 15,667.76 and 3,423.86

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Solution

The fourth proportional to 10,443.46, 15,667.76 and 3,423.86 is: 5,136.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,443.46 : 15,667.76 = 3,423.86 : x
  2. Step 2: Convert to fraction form
    10,443.46/15,667.76 = 3,423.86/x
  3. Step 3: Cross multiply
    10,443.46x = 15,667.76 × 3,423.86
  4. Step 4: Simplify right side
    10,443.46x = 53,644,216.75
  5. Step 5: Solve for x
    x = 53,644,216.75/10,443.46
  6. Step 6: Final answer
    x = 5,136.63

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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.