Home / 12,144.24-18,221.76-10,585.80

Finding the Fourth Proportional to 12,144.24, 18,221.76 and 10,585.80

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Solution

The fourth proportional to 12,144.24, 18,221.76 and 10,585.80 is: 15,883.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.24 : 18,221.76 = 10,585.80 : x
  2. Step 2: Convert to fraction form
    12,144.24/18,221.76 = 10,585.80/x
  3. Step 3: Cross multiply
    12,144.24x = 18,221.76 × 10,585.80
  4. Step 4: Simplify right side
    12,144.24x = 192,891,907.01
  5. Step 5: Solve for x
    x = 192,891,907.01/12,144.24
  6. Step 6: Final answer
    x = 15,883.41

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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.