Home / 13,009.95-19,514.97-3,149.21

Finding the Fourth Proportional to 13,009.95, 19,514.97 and 3,149.21

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Solution

The fourth proportional to 13,009.95, 19,514.97 and 3,149.21 is: 4,723.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.95 : 19,514.97 = 3,149.21 : x
  2. Step 2: Convert to fraction form
    13,009.95/19,514.97 = 3,149.21/x
  3. Step 3: Cross multiply
    13,009.95x = 19,514.97 × 3,149.21
  4. Step 4: Simplify right side
    13,009.95x = 61,456,787.46
  5. Step 5: Solve for x
    x = 61,456,787.46/13,009.95
  6. Step 6: Final answer
    x = 4,723.83

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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.