Home / 18,745.53-25,869.61-10,787.79

Finding the Fourth Proportional to 18,745.53, 25,869.61 and 10,787.79

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Solution

The fourth proportional to 18,745.53, 25,869.61 and 10,787.79 is: 14,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.53 : 25,869.61 = 10,787.79 : x
  2. Step 2: Convert to fraction form
    18,745.53/25,869.61 = 10,787.79/x
  3. Step 3: Cross multiply
    18,745.53x = 25,869.61 × 10,787.79
  4. Step 4: Simplify right side
    18,745.53x = 279,075,920.06
  5. Step 5: Solve for x
    x = 279,075,920.06/18,745.53
  6. Step 6: Final answer
    x = 14,887.60

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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.