Home / 18,920.48-26,107.92-10,959.84

Finding the Fourth Proportional to 18,920.48, 26,107.92 and 10,959.84

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Solution

The fourth proportional to 18,920.48, 26,107.92 and 10,959.84 is: 15,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920.48 : 26,107.92 = 10,959.84 : x
  2. Step 2: Convert to fraction form
    18,920.48/26,107.92 = 10,959.84/x
  3. Step 3: Cross multiply
    18,920.48x = 26,107.92 × 10,959.84
  4. Step 4: Simplify right side
    18,920.48x = 286,138,625.93
  5. Step 5: Solve for x
    x = 286,138,625.93/18,920.48
  6. Step 6: Final answer
    x = 15,123.22

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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.