Home / 13,377.97-18,462.77-11,395.09

Finding the Fourth Proportional to 13,377.97, 18,462.77 and 11,395.09

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Solution

The fourth proportional to 13,377.97, 18,462.77 and 11,395.09 is: 15,726.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.97 : 18,462.77 = 11,395.09 : x
  2. Step 2: Convert to fraction form
    13,377.97/18,462.77 = 11,395.09/x
  3. Step 3: Cross multiply
    13,377.97x = 18,462.77 × 11,395.09
  4. Step 4: Simplify right side
    13,377.97x = 210,384,925.80
  5. Step 5: Solve for x
    x = 210,384,925.80/13,377.97
  6. Step 6: Final answer
    x = 15,726.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.