Home / 15,147.51-22,722.48-5,286.57

Finding the Fourth Proportional to 15,147.51, 22,722.48 and 5,286.57

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Solution

The fourth proportional to 15,147.51, 22,722.48 and 5,286.57 is: 7,930.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147.51 : 22,722.48 = 5,286.57 : x
  2. Step 2: Convert to fraction form
    15,147.51/22,722.48 = 5,286.57/x
  3. Step 3: Cross multiply
    15,147.51x = 22,722.48 × 5,286.57
  4. Step 4: Simplify right side
    15,147.51x = 120,123,981.09
  5. Step 5: Solve for x
    x = 120,123,981.09/15,147.51
  6. Step 6: Final answer
    x = 7,930.28

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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.