Home / 12,536.40-18,806.76-5,144.88

Finding the Fourth Proportional to 12,536.40, 18,806.76 and 5,144.88

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Solution

The fourth proportional to 12,536.40, 18,806.76 and 5,144.88 is: 7,718.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,536.40 : 18,806.76 = 5,144.88 : x
  2. Step 2: Convert to fraction form
    12,536.40/18,806.76 = 5,144.88/x
  3. Step 3: Cross multiply
    12,536.40x = 18,806.76 × 5,144.88
  4. Step 4: Simplify right side
    12,536.40x = 96,758,523.39
  5. Step 5: Solve for x
    x = 96,758,523.39/12,536.40
  6. Step 6: Final answer
    x = 7,718.21

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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.