Home / 8,491.13-11,717.83-5,136.18

Finding the Fourth Proportional to 8,491.13, 11,717.83 and 5,136.18

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Solution

The fourth proportional to 8,491.13, 11,717.83 and 5,136.18 is: 7,087.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.13 : 11,717.83 = 5,136.18 : x
  2. Step 2: Convert to fraction form
    8,491.13/11,717.83 = 5,136.18/x
  3. Step 3: Cross multiply
    8,491.13x = 11,717.83 × 5,136.18
  4. Step 4: Simplify right side
    8,491.13x = 60,184,884.09
  5. Step 5: Solve for x
    x = 60,184,884.09/8,491.13
  6. Step 6: Final answer
    x = 7,087.97

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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.