Home / 15,233.11-21,021.63-8,518.71

Finding the Fourth Proportional to 15,233.11, 21,021.63 and 8,518.71

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Solution

The fourth proportional to 15,233.11, 21,021.63 and 8,518.71 is: 11,755.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,233.11 : 21,021.63 = 8,518.71 : x
  2. Step 2: Convert to fraction form
    15,233.11/21,021.63 = 8,518.71/x
  3. Step 3: Cross multiply
    15,233.11x = 21,021.63 × 8,518.71
  4. Step 4: Simplify right side
    15,233.11x = 179,077,169.70
  5. Step 5: Solve for x
    x = 179,077,169.70/15,233.11
  6. Step 6: Final answer
    x = 11,755.79

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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.