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Finding the Fourth Proportional to 7,491.87, 11,225.41 and 6,719.23

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Solution

The fourth proportional to 7,491.87, 11,225.41 and 6,719.23 is: 10,067.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.87 : 11,225.41 = 6,719.23 : x
  2. Step 2: Convert to fraction form
    7,491.87/11,225.41 = 6,719.23/x
  3. Step 3: Cross multiply
    7,491.87x = 11,225.41 × 6,719.23
  4. Step 4: Simplify right side
    7,491.87x = 75,426,066.77
  5. Step 5: Solve for x
    x = 75,426,066.77/7,491.87
  6. Step 6: Final answer
    x = 10,067.72

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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.