Home / 13,726.15-18,934.77-8,350.23

Finding the Fourth Proportional to 13,726.15, 18,934.77 and 8,350.23

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Solution

The fourth proportional to 13,726.15, 18,934.77 and 8,350.23 is: 11,518.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.15 : 18,934.77 = 8,350.23 : x
  2. Step 2: Convert to fraction form
    13,726.15/18,934.77 = 8,350.23/x
  3. Step 3: Cross multiply
    13,726.15x = 18,934.77 × 8,350.23
  4. Step 4: Simplify right side
    13,726.15x = 158,109,684.50
  5. Step 5: Solve for x
    x = 158,109,684.50/13,726.15
  6. Step 6: Final answer
    x = 11,518.87

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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.