Home / 12,699.15-19,049.27-3,934.23

Finding the Fourth Proportional to 12,699.15, 19,049.27 and 3,934.23

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Solution

The fourth proportional to 12,699.15, 19,049.27 and 3,934.23 is: 5,901.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.15 : 19,049.27 = 3,934.23 : x
  2. Step 2: Convert to fraction form
    12,699.15/19,049.27 = 3,934.23/x
  3. Step 3: Cross multiply
    12,699.15x = 19,049.27 × 3,934.23
  4. Step 4: Simplify right side
    12,699.15x = 74,944,209.51
  5. Step 5: Solve for x
    x = 74,944,209.51/12,699.15
  6. Step 6: Final answer
    x = 5,901.51

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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.