Home / 13,491.19-20,236.92-4,131.19

Finding the Fourth Proportional to 13,491.19, 20,236.92 and 4,131.19

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Solution

The fourth proportional to 13,491.19, 20,236.92 and 4,131.19 is: 6,196.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.19 : 20,236.92 = 4,131.19 : x
  2. Step 2: Convert to fraction form
    13,491.19/20,236.92 = 4,131.19/x
  3. Step 3: Cross multiply
    13,491.19x = 20,236.92 × 4,131.19
  4. Step 4: Simplify right side
    13,491.19x = 83,602,561.53
  5. Step 5: Solve for x
    x = 83,602,561.53/13,491.19
  6. Step 6: Final answer
    x = 6,196.83

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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.