Home / 18,787.06-25,925.75-10,288.76

Finding the Fourth Proportional to 18,787.06, 25,925.75 and 10,288.76

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Solution

The fourth proportional to 18,787.06, 25,925.75 and 10,288.76 is: 14,198.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.06 : 25,925.75 = 10,288.76 : x
  2. Step 2: Convert to fraction form
    18,787.06/25,925.75 = 10,288.76/x
  3. Step 3: Cross multiply
    18,787.06x = 25,925.75 × 10,288.76
  4. Step 4: Simplify right side
    18,787.06x = 266,743,819.57
  5. Step 5: Solve for x
    x = 266,743,819.57/18,787.06
  6. Step 6: Final answer
    x = 14,198.27

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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.