Home / 15,400.72-22,988.75-13,223.44

Finding the Fourth Proportional to 15,400.72, 22,988.75 and 13,223.44

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Solution

The fourth proportional to 15,400.72, 22,988.75 and 13,223.44 is: 19,738.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.72 : 22,988.75 = 13,223.44 : x
  2. Step 2: Convert to fraction form
    15,400.72/22,988.75 = 13,223.44/x
  3. Step 3: Cross multiply
    15,400.72x = 22,988.75 × 13,223.44
  4. Step 4: Simplify right side
    15,400.72x = 303,990,356.30
  5. Step 5: Solve for x
    x = 303,990,356.30/15,400.72
  6. Step 6: Final answer
    x = 19,738.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.