Home / 17,591.68-26,389.25-5,111.81

Finding the Fourth Proportional to 17,591.68, 26,389.25 and 5,111.81

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Solution

The fourth proportional to 17,591.68, 26,389.25 and 5,111.81 is: 7,668.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,591.68 : 26,389.25 = 5,111.81 : x
  2. Step 2: Convert to fraction form
    17,591.68/26,389.25 = 5,111.81/x
  3. Step 3: Cross multiply
    17,591.68x = 26,389.25 × 5,111.81
  4. Step 4: Simplify right side
    17,591.68x = 134,896,933.64
  5. Step 5: Solve for x
    x = 134,896,933.64/17,591.68
  6. Step 6: Final answer
    x = 7,668.22

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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.