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Finding the Fourth Proportional to 6,641.39, 9,949.11 and 5,173.67

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Solution

The fourth proportional to 6,641.39, 9,949.11 and 5,173.67 is: 7,750.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641.39 : 9,949.11 = 5,173.67 : x
  2. Step 2: Convert to fraction form
    6,641.39/9,949.11 = 5,173.67/x
  3. Step 3: Cross multiply
    6,641.39x = 9,949.11 × 5,173.67
  4. Step 4: Simplify right side
    6,641.39x = 51,473,411.93
  5. Step 5: Solve for x
    x = 51,473,411.93/6,641.39
  6. Step 6: Final answer
    x = 7,750.40

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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.