Home / 7,329.92-10,115.70-4,186.76

Finding the Fourth Proportional to 7,329.92, 10,115.70 and 4,186.76

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Solution

The fourth proportional to 7,329.92, 10,115.70 and 4,186.76 is: 5,777.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.92 : 10,115.70 = 4,186.76 : x
  2. Step 2: Convert to fraction form
    7,329.92/10,115.70 = 4,186.76/x
  3. Step 3: Cross multiply
    7,329.92x = 10,115.70 × 4,186.76
  4. Step 4: Simplify right side
    7,329.92x = 42,352,008.13
  5. Step 5: Solve for x
    x = 42,352,008.13/7,329.92
  6. Step 6: Final answer
    x = 5,777.96

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Half scale
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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.