Home / 18,949.37-28,434.98-10,516.66

Finding the Fourth Proportional to 18,949.37, 28,434.98 and 10,516.66

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Solution

The fourth proportional to 18,949.37, 28,434.98 and 10,516.66 is: 15,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.37 : 28,434.98 = 10,516.66 : x
  2. Step 2: Convert to fraction form
    18,949.37/28,434.98 = 10,516.66/x
  3. Step 3: Cross multiply
    18,949.37x = 28,434.98 × 10,516.66
  4. Step 4: Simplify right side
    18,949.37x = 299,040,971.97
  5. Step 5: Solve for x
    x = 299,040,971.97/18,949.37
  6. Step 6: Final answer
    x = 15,781.06

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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.