Home / 7,382.20-10,166.70-7,220.92

Finding the Fourth Proportional to 7,382.20, 10,166.70 and 7,220.92

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Solution

The fourth proportional to 7,382.20, 10,166.70 and 7,220.92 is: 9,944.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382.20 : 10,166.70 = 7,220.92 : x
  2. Step 2: Convert to fraction form
    7,382.20/10,166.70 = 7,220.92/x
  3. Step 3: Cross multiply
    7,382.20x = 10,166.70 × 7,220.92
  4. Step 4: Simplify right side
    7,382.20x = 73,412,927.36
  5. Step 5: Solve for x
    x = 73,412,927.36/7,382.20
  6. Step 6: Final answer
    x = 9,944.59

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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.