Home / 10,217.42-15,326.10-2,821.86

Finding the Fourth Proportional to 10,217.42, 15,326.10 and 2,821.86

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Solution

The fourth proportional to 10,217.42, 15,326.10 and 2,821.86 is: 4,232.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.42 : 15,326.10 = 2,821.86 : x
  2. Step 2: Convert to fraction form
    10,217.42/15,326.10 = 2,821.86/x
  3. Step 3: Cross multiply
    10,217.42x = 15,326.10 × 2,821.86
  4. Step 4: Simplify right side
    10,217.42x = 43,248,038.97
  5. Step 5: Solve for x
    x = 43,248,038.97/10,217.42
  6. Step 6: Final answer
    x = 4,232.78

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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.