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Finding the Fourth Proportional to 6,501.80, 8,981.67 and 5,173.81

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Solution

The fourth proportional to 6,501.80, 8,981.67 and 5,173.81 is: 7,147.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,501.80 : 8,981.67 = 5,173.81 : x
  2. Step 2: Convert to fraction form
    6,501.80/8,981.67 = 5,173.81/x
  3. Step 3: Cross multiply
    6,501.80x = 8,981.67 × 5,173.81
  4. Step 4: Simplify right side
    6,501.80x = 46,469,451.39
  5. Step 5: Solve for x
    x = 46,469,451.39/6,501.80
  6. Step 6: Final answer
    x = 7,147.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.