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Finding the Fourth Proportional to 7,003.87, 10,477.10 and 6,388.09

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Solution

The fourth proportional to 7,003.87, 10,477.10 and 6,388.09 is: 9,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003.87 : 10,477.10 = 6,388.09 : x
  2. Step 2: Convert to fraction form
    7,003.87/10,477.10 = 6,388.09/x
  3. Step 3: Cross multiply
    7,003.87x = 10,477.10 × 6,388.09
  4. Step 4: Simplify right side
    7,003.87x = 66,928,641.05
  5. Step 5: Solve for x
    x = 66,928,641.05/7,003.87
  6. Step 6: Final answer
    x = 9,555.95

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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.