Home / 10,828.08-16,231.56-5,281.20

Finding the Fourth Proportional to 10,828.08, 16,231.56 and 5,281.20

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Solution

The fourth proportional to 10,828.08, 16,231.56 and 5,281.20 is: 7,916.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,828.08 : 16,231.56 = 5,281.20 : x
  2. Step 2: Convert to fraction form
    10,828.08/16,231.56 = 5,281.20/x
  3. Step 3: Cross multiply
    10,828.08x = 16,231.56 × 5,281.20
  4. Step 4: Simplify right side
    10,828.08x = 85,722,114.67
  5. Step 5: Solve for x
    x = 85,722,114.67/10,828.08
  6. Step 6: Final answer
    x = 7,916.65

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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.