Home / 11,257.65-16,864.20-9,872.55

Finding the Fourth Proportional to 11,257.65, 16,864.20 and 9,872.55

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Solution

The fourth proportional to 11,257.65, 16,864.20 and 9,872.55 is: 14,789.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.65 : 16,864.20 = 9,872.55 : x
  2. Step 2: Convert to fraction form
    11,257.65/16,864.20 = 9,872.55/x
  3. Step 3: Cross multiply
    11,257.65x = 16,864.20 × 9,872.55
  4. Step 4: Simplify right side
    11,257.65x = 166,492,657.71
  5. Step 5: Solve for x
    x = 166,492,657.71/11,257.65
  6. Step 6: Final answer
    x = 14,789.29

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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.