Home / 15,232.57-21,021.42-8,518.48

Finding the Fourth Proportional to 15,232.57, 21,021.42 and 8,518.48

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Solution

The fourth proportional to 15,232.57, 21,021.42 and 8,518.48 is: 11,755.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,232.57 : 21,021.42 = 8,518.48 : x
  2. Step 2: Convert to fraction form
    15,232.57/21,021.42 = 8,518.48/x
  3. Step 3: Cross multiply
    15,232.57x = 21,021.42 × 8,518.48
  4. Step 4: Simplify right side
    15,232.57x = 179,070,545.84
  5. Step 5: Solve for x
    x = 179,070,545.84/15,232.57
  6. Step 6: Final answer
    x = 11,755.77

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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.