Home / 15,640.07-23,432.42-12,992.09

Finding the Fourth Proportional to 15,640.07, 23,432.42 and 12,992.09

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Solution

The fourth proportional to 15,640.07, 23,432.42 and 12,992.09 is: 19,465.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.07 : 23,432.42 = 12,992.09 : x
  2. Step 2: Convert to fraction form
    15,640.07/23,432.42 = 12,992.09/x
  3. Step 3: Cross multiply
    15,640.07x = 23,432.42 × 12,992.09
  4. Step 4: Simplify right side
    15,640.07x = 304,436,109.56
  5. Step 5: Solve for x
    x = 304,436,109.56/15,640.07
  6. Step 6: Final answer
    x = 19,465.14

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1.5x scale

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.