Home / 10,013.70-15,021.18-3,438.96

Finding the Fourth Proportional to 10,013.70, 15,021.18 and 3,438.96

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Solution

The fourth proportional to 10,013.70, 15,021.18 and 3,438.96 is: 5,158.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.70 : 15,021.18 = 3,438.96 : x
  2. Step 2: Convert to fraction form
    10,013.70/15,021.18 = 3,438.96/x
  3. Step 3: Cross multiply
    10,013.70x = 15,021.18 × 3,438.96
  4. Step 4: Simplify right side
    10,013.70x = 51,657,237.17
  5. Step 5: Solve for x
    x = 51,657,237.17/10,013.70
  6. Step 6: Final answer
    x = 5,158.66

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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.