Home / 13,294.91-19,939.35-3,935.63

Finding the Fourth Proportional to 13,294.91, 19,939.35 and 3,935.63

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Solution

The fourth proportional to 13,294.91, 19,939.35 and 3,935.63 is: 5,902.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,294.91 : 19,939.35 = 3,935.63 : x
  2. Step 2: Convert to fraction form
    13,294.91/19,939.35 = 3,935.63/x
  3. Step 3: Cross multiply
    13,294.91x = 19,939.35 × 3,935.63
  4. Step 4: Simplify right side
    13,294.91x = 78,473,904.04
  5. Step 5: Solve for x
    x = 78,473,904.04/13,294.91
  6. Step 6: Final answer
    x = 5,902.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.