Home / 18,787.87-25,926.91-10,830.43

Finding the Fourth Proportional to 18,787.87, 25,926.91 and 10,830.43

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Solution

The fourth proportional to 18,787.87, 25,926.91 and 10,830.43 is: 14,945.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.87 : 25,926.91 = 10,830.43 : x
  2. Step 2: Convert to fraction form
    18,787.87/25,926.91 = 10,830.43/x
  3. Step 3: Cross multiply
    18,787.87x = 25,926.91 × 10,830.43
  4. Step 4: Simplify right side
    18,787.87x = 280,799,583.87
  5. Step 5: Solve for x
    x = 280,799,583.87/18,787.87
  6. Step 6: Final answer
    x = 14,945.79

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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.