Home / 18,745.10-25,867.45-10,787.60

Finding the Fourth Proportional to 18,745.10, 25,867.45 and 10,787.60

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Solution

The fourth proportional to 18,745.10, 25,867.45 and 10,787.60 is: 14,886.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.10 : 25,867.45 = 10,787.60 : x
  2. Step 2: Convert to fraction form
    18,745.10/25,867.45 = 10,787.60/x
  3. Step 3: Cross multiply
    18,745.10x = 25,867.45 × 10,787.60
  4. Step 4: Simplify right side
    18,745.10x = 279,047,703.62
  5. Step 5: Solve for x
    x = 279,047,703.62/18,745.10
  6. Step 6: Final answer
    x = 14,886.43

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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.