Home / 19,418.95-26,778.22-13,752.19

Finding the Fourth Proportional to 19,418.95, 26,778.22 and 13,752.19

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Solution

The fourth proportional to 19,418.95, 26,778.22 and 13,752.19 is: 18,963.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.95 : 26,778.22 = 13,752.19 : x
  2. Step 2: Convert to fraction form
    19,418.95/26,778.22 = 13,752.19/x
  3. Step 3: Cross multiply
    19,418.95x = 26,778.22 × 13,752.19
  4. Step 4: Simplify right side
    19,418.95x = 368,259,169.30
  5. Step 5: Solve for x
    x = 368,259,169.30/19,418.95
  6. Step 6: Final answer
    x = 18,963.91

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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.