Home / 15,452.65-21,324.54-8,379.06

Finding the Fourth Proportional to 15,452.65, 21,324.54 and 8,379.06

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Solution

The fourth proportional to 15,452.65, 21,324.54 and 8,379.06 is: 11,563.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.65 : 21,324.54 = 8,379.06 : x
  2. Step 2: Convert to fraction form
    15,452.65/21,324.54 = 8,379.06/x
  3. Step 3: Cross multiply
    15,452.65x = 21,324.54 × 8,379.06
  4. Step 4: Simplify right side
    15,452.65x = 178,679,600.13
  5. Step 5: Solve for x
    x = 178,679,600.13/15,452.65
  6. Step 6: Final answer
    x = 11,563.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.