Home / 14,286.51-19,715.45-7,912.97

Finding the Fourth Proportional to 14,286.51, 19,715.45 and 7,912.97

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Solution

The fourth proportional to 14,286.51, 19,715.45 and 7,912.97 is: 10,919.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.51 : 19,715.45 = 7,912.97 : x
  2. Step 2: Convert to fraction form
    14,286.51/19,715.45 = 7,912.97/x
  3. Step 3: Cross multiply
    14,286.51x = 19,715.45 × 7,912.97
  4. Step 4: Simplify right side
    14,286.51x = 156,007,689.24
  5. Step 5: Solve for x
    x = 156,007,689.24/14,286.51
  6. Step 6: Final answer
    x = 10,919.93

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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.