Home / 18,745.03-25,868.92-10,787.28

Finding the Fourth Proportional to 18,745.03, 25,868.92 and 10,787.28

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Solution

The fourth proportional to 18,745.03, 25,868.92 and 10,787.28 is: 14,886.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.03 : 25,868.92 = 10,787.28 : x
  2. Step 2: Convert to fraction form
    18,745.03/25,868.92 = 10,787.28/x
  3. Step 3: Cross multiply
    18,745.03x = 25,868.92 × 10,787.28
  4. Step 4: Simplify right side
    18,745.03x = 279,055,283.34
  5. Step 5: Solve for x
    x = 279,055,283.34/18,745.03
  6. Step 6: Final answer
    x = 14,886.89

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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.