Home / 18,787.25-25,927.22-10,403.75

Finding the Fourth Proportional to 18,787.25, 25,927.22 and 10,403.75

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Solution

The fourth proportional to 18,787.25, 25,927.22 and 10,403.75 is: 14,357.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.25 : 25,927.22 = 10,403.75 : x
  2. Step 2: Convert to fraction form
    18,787.25/25,927.22 = 10,403.75/x
  3. Step 3: Cross multiply
    18,787.25x = 25,927.22 × 10,403.75
  4. Step 4: Simplify right side
    18,787.25x = 269,740,315.08
  5. Step 5: Solve for x
    x = 269,740,315.08/18,787.25
  6. Step 6: Final answer
    x = 14,357.63

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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.