Home / 12,669.14-19,003.71-7,672.52

Finding the Fourth Proportional to 12,669.14, 19,003.71 and 7,672.52

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Solution

The fourth proportional to 12,669.14, 19,003.71 and 7,672.52 is: 11,508.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.14 : 19,003.71 = 7,672.52 : x
  2. Step 2: Convert to fraction form
    12,669.14/19,003.71 = 7,672.52/x
  3. Step 3: Cross multiply
    12,669.14x = 19,003.71 × 7,672.52
  4. Step 4: Simplify right side
    12,669.14x = 145,806,345.05
  5. Step 5: Solve for x
    x = 145,806,345.05/12,669.14
  6. Step 6: Final answer
    x = 11,508.78

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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.