Home / 10,013.05-15,019.89-3,439.15

Finding the Fourth Proportional to 10,013.05, 15,019.89 and 3,439.15

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Solution

The fourth proportional to 10,013.05, 15,019.89 and 3,439.15 is: 5,158.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.05 : 15,019.89 = 3,439.15 : x
  2. Step 2: Convert to fraction form
    10,013.05/15,019.89 = 3,439.15/x
  3. Step 3: Cross multiply
    10,013.05x = 15,019.89 × 3,439.15
  4. Step 4: Simplify right side
    10,013.05x = 51,655,654.69
  5. Step 5: Solve for x
    x = 51,655,654.69/10,013.05
  6. Step 6: Final answer
    x = 5,158.83

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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.