Home / 18,787.46-25,926.45-10,720.90

Finding the Fourth Proportional to 18,787.46, 25,926.45 and 10,720.90

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Solution

The fourth proportional to 18,787.46, 25,926.45 and 10,720.90 is: 14,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.46 : 25,926.45 = 10,720.90 : x
  2. Step 2: Convert to fraction form
    18,787.46/25,926.45 = 10,720.90/x
  3. Step 3: Cross multiply
    18,787.46x = 25,926.45 × 10,720.90
  4. Step 4: Simplify right side
    18,787.46x = 277,954,870.01
  5. Step 5: Solve for x
    x = 277,954,870.01/18,787.46
  6. Step 6: Final answer
    x = 14,794.71

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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.