Home / 10,420.72-15,619.08-5,794.48

Finding the Fourth Proportional to 10,420.72, 15,619.08 and 5,794.48

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Solution

The fourth proportional to 10,420.72, 15,619.08 and 5,794.48 is: 8,685.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.72 : 15,619.08 = 5,794.48 : x
  2. Step 2: Convert to fraction form
    10,420.72/15,619.08 = 5,794.48/x
  3. Step 3: Cross multiply
    10,420.72x = 15,619.08 × 5,794.48
  4. Step 4: Simplify right side
    10,420.72x = 90,504,446.68
  5. Step 5: Solve for x
    x = 90,504,446.68/10,420.72
  6. Step 6: Final answer
    x = 8,685.05

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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.