Home / 18,743.64-25,866.18-10,787.43

Finding the Fourth Proportional to 18,743.64, 25,866.18 and 10,787.43

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Solution

The fourth proportional to 18,743.64, 25,866.18 and 10,787.43 is: 14,886.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.64 : 25,866.18 = 10,787.43 : x
  2. Step 2: Convert to fraction form
    18,743.64/25,866.18 = 10,787.43/x
  3. Step 3: Cross multiply
    18,743.64x = 25,866.18 × 10,787.43
  4. Step 4: Simplify right side
    18,743.64x = 279,029,606.12
  5. Step 5: Solve for x
    x = 279,029,606.12/18,743.64
  6. Step 6: Final answer
    x = 14,886.63

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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.