Home / 7,003.87-10,500.13-2,620.69

Finding the Fourth Proportional to 7,003.87, 10,500.13 and 2,620.69

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Solution

The fourth proportional to 7,003.87, 10,500.13 and 2,620.69 is: 3,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003.87 : 10,500.13 = 2,620.69 : x
  2. Step 2: Convert to fraction form
    7,003.87/10,500.13 = 2,620.69/x
  3. Step 3: Cross multiply
    7,003.87x = 10,500.13 × 2,620.69
  4. Step 4: Simplify right side
    7,003.87x = 27,517,585.69
  5. Step 5: Solve for x
    x = 27,517,585.69/7,003.87
  6. Step 6: Final answer
    x = 3,928.91

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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.