Home / 18,390.92-25,377.40-10,836.75

Finding the Fourth Proportional to 18,390.92, 25,377.40 and 10,836.75

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Solution

The fourth proportional to 18,390.92, 25,377.40 and 10,836.75 is: 14,953.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.92 : 25,377.40 = 10,836.75 : x
  2. Step 2: Convert to fraction form
    18,390.92/25,377.40 = 10,836.75/x
  3. Step 3: Cross multiply
    18,390.92x = 25,377.40 × 10,836.75
  4. Step 4: Simplify right side
    18,390.92x = 275,008,648.16
  5. Step 5: Solve for x
    x = 275,008,648.16/18,390.92
  6. Step 6: Final answer
    x = 14,953.51

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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.