Home / 13,257.66-19,885.20-4,491.54

Finding the Fourth Proportional to 13,257.66, 19,885.20 and 4,491.54

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Solution

The fourth proportional to 13,257.66, 19,885.20 and 4,491.54 is: 6,736.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.66 : 19,885.20 = 4,491.54 : x
  2. Step 2: Convert to fraction form
    13,257.66/19,885.20 = 4,491.54/x
  3. Step 3: Cross multiply
    13,257.66x = 19,885.20 × 4,491.54
  4. Step 4: Simplify right side
    13,257.66x = 89,315,171.21
  5. Step 5: Solve for x
    x = 89,315,171.21/13,257.66
  6. Step 6: Final answer
    x = 6,736.87

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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.