Home / 18,896.40-26,079.84-10,938.96

Finding the Fourth Proportional to 18,896.40, 26,079.84 and 10,938.96

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Solution

The fourth proportional to 18,896.40, 26,079.84 and 10,938.96 is: 15,097.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.40 : 26,079.84 = 10,938.96 : x
  2. Step 2: Convert to fraction form
    18,896.40/26,079.84 = 10,938.96/x
  3. Step 3: Cross multiply
    18,896.40x = 26,079.84 × 10,938.96
  4. Step 4: Simplify right side
    18,896.40x = 285,286,326.57
  5. Step 5: Solve for x
    x = 285,286,326.57/18,896.40
  6. Step 6: Final answer
    x = 15,097.39

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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.