Home / 10,418.42-15,624.38-3,491.30

Finding the Fourth Proportional to 10,418.42, 15,624.38 and 3,491.30

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Solution

The fourth proportional to 10,418.42, 15,624.38 and 3,491.30 is: 5,235.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.42 : 15,624.38 = 3,491.30 : x
  2. Step 2: Convert to fraction form
    10,418.42/15,624.38 = 3,491.30/x
  3. Step 3: Cross multiply
    10,418.42x = 15,624.38 × 3,491.30
  4. Step 4: Simplify right side
    10,418.42x = 54,549,445.68
  5. Step 5: Solve for x
    x = 54,549,445.68/10,418.42
  6. Step 6: Final answer
    x = 5,235.86

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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.