Home / 18,954.05-26,155.49-10,456.20

Finding the Fourth Proportional to 18,954.05, 26,155.49 and 10,456.20

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Solution

The fourth proportional to 18,954.05, 26,155.49 and 10,456.20 is: 14,428.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.05 : 26,155.49 = 10,456.20 : x
  2. Step 2: Convert to fraction form
    18,954.05/26,155.49 = 10,456.20/x
  3. Step 3: Cross multiply
    18,954.05x = 26,155.49 × 10,456.20
  4. Step 4: Simplify right side
    18,954.05x = 273,486,982.26
  5. Step 5: Solve for x
    x = 273,486,982.26/18,954.05
  6. Step 6: Final answer
    x = 14,428.95

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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.