Home / 7,543.68-11,316.77-3,161.46

Finding the Fourth Proportional to 7,543.68, 11,316.77 and 3,161.46

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Solution

The fourth proportional to 7,543.68, 11,316.77 and 3,161.46 is: 4,742.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,543.68 : 11,316.77 = 3,161.46 : x
  2. Step 2: Convert to fraction form
    7,543.68/11,316.77 = 3,161.46/x
  3. Step 3: Cross multiply
    7,543.68x = 11,316.77 × 3,161.46
  4. Step 4: Simplify right side
    7,543.68x = 35,777,515.68
  5. Step 5: Solve for x
    x = 35,777,515.68/7,543.68
  6. Step 6: Final answer
    x = 4,742.71

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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.