Home / 15,824.35-21,837.30-8,654.07

Finding the Fourth Proportional to 15,824.35, 21,837.30 and 8,654.07

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Solution

The fourth proportional to 15,824.35, 21,837.30 and 8,654.07 is: 11,942.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,824.35 : 21,837.30 = 8,654.07 : x
  2. Step 2: Convert to fraction form
    15,824.35/21,837.30 = 8,654.07/x
  3. Step 3: Cross multiply
    15,824.35x = 21,837.30 × 8,654.07
  4. Step 4: Simplify right side
    15,824.35x = 188,981,572.25
  5. Step 5: Solve for x
    x = 188,981,572.25/15,824.35
  6. Step 6: Final answer
    x = 11,942.45

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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.