Home / 8,521.30-12,783.17-2,281.52

Finding the Fourth Proportional to 8,521.30, 12,783.17 and 2,281.52

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Solution

The fourth proportional to 8,521.30, 12,783.17 and 2,281.52 is: 3,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.30 : 12,783.17 = 2,281.52 : x
  2. Step 2: Convert to fraction form
    8,521.30/12,783.17 = 2,281.52/x
  3. Step 3: Cross multiply
    8,521.30x = 12,783.17 × 2,281.52
  4. Step 4: Simplify right side
    8,521.30x = 29,165,010.94
  5. Step 5: Solve for x
    x = 29,165,010.94/8,521.30
  6. Step 6: Final answer
    x = 3,422.60

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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.