Home / 10,351.08-15,530.96-5,423.96

Finding the Fourth Proportional to 10,351.08, 15,530.96 and 5,423.96

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Solution

The fourth proportional to 10,351.08, 15,530.96 and 5,423.96 is: 8,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,351.08 : 15,530.96 = 5,423.96 : x
  2. Step 2: Convert to fraction form
    10,351.08/15,530.96 = 5,423.96/x
  3. Step 3: Cross multiply
    10,351.08x = 15,530.96 × 5,423.96
  4. Step 4: Simplify right side
    10,351.08x = 84,239,305.80
  5. Step 5: Solve for x
    x = 84,239,305.80/10,351.08
  6. Step 6: Final answer
    x = 8,138.21

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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.