Home / 15,324.60-21,145.68-8,864.04

Finding the Fourth Proportional to 15,324.60, 21,145.68 and 8,864.04

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Solution

The fourth proportional to 15,324.60, 21,145.68 and 8,864.04 is: 12,231.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.60 : 21,145.68 = 8,864.04 : x
  2. Step 2: Convert to fraction form
    15,324.60/21,145.68 = 8,864.04/x
  3. Step 3: Cross multiply
    15,324.60x = 21,145.68 × 8,864.04
  4. Step 4: Simplify right side
    15,324.60x = 187,436,153.35
  5. Step 5: Solve for x
    x = 187,436,153.35/15,324.60
  6. Step 6: Final answer
    x = 12,231.06

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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.