Home / 10,782.72-16,174.06-3,387.74

Finding the Fourth Proportional to 10,782.72, 16,174.06 and 3,387.74

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Solution

The fourth proportional to 10,782.72, 16,174.06 and 3,387.74 is: 5,081.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,782.72 : 16,174.06 = 3,387.74 : x
  2. Step 2: Convert to fraction form
    10,782.72/16,174.06 = 3,387.74/x
  3. Step 3: Cross multiply
    10,782.72x = 16,174.06 × 3,387.74
  4. Step 4: Simplify right side
    10,782.72x = 54,793,420.68
  5. Step 5: Solve for x
    x = 54,793,420.68/10,782.72
  6. Step 6: Final answer
    x = 5,081.60

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1.5x scale

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.