Home / 12,868.62-19,305.77-7,324.58

Finding the Fourth Proportional to 12,868.62, 19,305.77 and 7,324.58

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Solution

The fourth proportional to 12,868.62, 19,305.77 and 7,324.58 is: 10,988.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.62 : 19,305.77 = 7,324.58 : x
  2. Step 2: Convert to fraction form
    12,868.62/19,305.77 = 7,324.58/x
  3. Step 3: Cross multiply
    12,868.62x = 19,305.77 × 7,324.58
  4. Step 4: Simplify right side
    12,868.62x = 141,406,523.67
  5. Step 5: Solve for x
    x = 141,406,523.67/12,868.62
  6. Step 6: Final answer
    x = 10,988.48

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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.