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Finding the Fourth Proportional to 17,720.69, 26,571.81 and 8,358.19

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Solution

The fourth proportional to 17,720.69, 26,571.81 and 8,358.19 is: 12,532.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.69 : 26,571.81 = 8,358.19 : x
  2. Step 2: Convert to fraction form
    17,720.69/26,571.81 = 8,358.19/x
  3. Step 3: Cross multiply
    17,720.69x = 26,571.81 × 8,358.19
  4. Step 4: Simplify right side
    17,720.69x = 222,092,243.12
  5. Step 5: Solve for x
    x = 222,092,243.12/17,720.69
  6. Step 6: Final answer
    x = 12,532.93

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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.