Home / 10,781.96-16,173.72-3,386.32

Finding the Fourth Proportional to 10,781.96, 16,173.72 and 3,386.32

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Solution

The fourth proportional to 10,781.96, 16,173.72 and 3,386.32 is: 5,079.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.96 : 16,173.72 = 3,386.32 : x
  2. Step 2: Convert to fraction form
    10,781.96/16,173.72 = 3,386.32/x
  3. Step 3: Cross multiply
    10,781.96x = 16,173.72 × 3,386.32
  4. Step 4: Simplify right side
    10,781.96x = 54,769,351.08
  5. Step 5: Solve for x
    x = 54,769,351.08/10,781.96
  6. Step 6: Final answer
    x = 5,079.72

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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.