Home / 12,839.68-19,243.77-7,297.66

Finding the Fourth Proportional to 12,839.68, 19,243.77 and 7,297.66

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Solution

The fourth proportional to 12,839.68, 19,243.77 and 7,297.66 is: 10,937.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839.68 : 19,243.77 = 7,297.66 : x
  2. Step 2: Convert to fraction form
    12,839.68/19,243.77 = 7,297.66/x
  3. Step 3: Cross multiply
    12,839.68x = 19,243.77 × 7,297.66
  4. Step 4: Simplify right side
    12,839.68x = 140,434,490.58
  5. Step 5: Solve for x
    x = 140,434,490.58/12,839.68
  6. Step 6: Final answer
    x = 10,937.54

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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.