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Finding the Fourth Proportional to 6,639.73, 9,960.11 and 1,709.42

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Solution

The fourth proportional to 6,639.73, 9,960.11 and 1,709.42 is: 2,564.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.73 : 9,960.11 = 1,709.42 : x
  2. Step 2: Convert to fraction form
    6,639.73/9,960.11 = 1,709.42/x
  3. Step 3: Cross multiply
    6,639.73x = 9,960.11 × 1,709.42
  4. Step 4: Simplify right side
    6,639.73x = 17,026,011.24
  5. Step 5: Solve for x
    x = 17,026,011.24/6,639.73
  6. Step 6: Final answer
    x = 2,564.26

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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.