Home / 10,405.78-15,593.70-4,481.04

Finding the Fourth Proportional to 10,405.78, 15,593.70 and 4,481.04

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Solution

The fourth proportional to 10,405.78, 15,593.70 and 4,481.04 is: 6,715.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.78 : 15,593.70 = 4,481.04 : x
  2. Step 2: Convert to fraction form
    10,405.78/15,593.70 = 4,481.04/x
  3. Step 3: Cross multiply
    10,405.78x = 15,593.70 × 4,481.04
  4. Step 4: Simplify right side
    10,405.78x = 69,875,993.45
  5. Step 5: Solve for x
    x = 69,875,993.45/10,405.78
  6. Step 6: Final answer
    x = 6,715.11

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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.