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Finding the Fourth Proportional to 12,851.76, 19,250.04 and 11,449.68

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Solution

The fourth proportional to 12,851.76, 19,250.04 and 11,449.68 is: 17,149.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,851.76 : 19,250.04 = 11,449.68 : x
  2. Step 2: Convert to fraction form
    12,851.76/19,250.04 = 11,449.68/x
  3. Step 3: Cross multiply
    12,851.76x = 19,250.04 × 11,449.68
  4. Step 4: Simplify right side
    12,851.76x = 220,406,797.99
  5. Step 5: Solve for x
    x = 220,406,797.99/12,851.76
  6. Step 6: Final answer
    x = 17,149.93

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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.