Home / 18,787.68-25,926.12-10,403.52

Finding the Fourth Proportional to 18,787.68, 25,926.12 and 10,403.52

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Solution

The fourth proportional to 18,787.68, 25,926.12 and 10,403.52 is: 14,356.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.68 : 25,926.12 = 10,403.52 : x
  2. Step 2: Convert to fraction form
    18,787.68/25,926.12 = 10,403.52/x
  3. Step 3: Cross multiply
    18,787.68x = 25,926.12 × 10,403.52
  4. Step 4: Simplify right side
    18,787.68x = 269,722,907.94
  5. Step 5: Solve for x
    x = 269,722,907.94/18,787.68
  6. Step 6: Final answer
    x = 14,356.37

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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.