Home / 11,161.79-16,742.13-4,143.17

Finding the Fourth Proportional to 11,161.79, 16,742.13 and 4,143.17

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Solution

The fourth proportional to 11,161.79, 16,742.13 and 4,143.17 is: 6,214.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.79 : 16,742.13 = 4,143.17 : x
  2. Step 2: Convert to fraction form
    11,161.79/16,742.13 = 4,143.17/x
  3. Step 3: Cross multiply
    11,161.79x = 16,742.13 × 4,143.17
  4. Step 4: Simplify right side
    11,161.79x = 69,365,407.04
  5. Step 5: Solve for x
    x = 69,365,407.04/11,161.79
  6. Step 6: Final answer
    x = 6,214.54

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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.