Home / 7,165.14-9,887.85-4,180.74

Finding the Fourth Proportional to 7,165.14, 9,887.85 and 4,180.74

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Solution

The fourth proportional to 7,165.14, 9,887.85 and 4,180.74 is: 5,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.14 : 9,887.85 = 4,180.74 : x
  2. Step 2: Convert to fraction form
    7,165.14/9,887.85 = 4,180.74/x
  3. Step 3: Cross multiply
    7,165.14x = 9,887.85 × 4,180.74
  4. Step 4: Simplify right side
    7,165.14x = 41,338,530.01
  5. Step 5: Solve for x
    x = 41,338,530.01/7,165.14
  6. Step 6: Final answer
    x = 5,769.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.