Home / 13,581.72-20,377.98-4,817.52

Finding the Fourth Proportional to 13,581.72, 20,377.98 and 4,817.52

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Solution

The fourth proportional to 13,581.72, 20,377.98 and 4,817.52 is: 7,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.72 : 20,377.98 = 4,817.52 : x
  2. Step 2: Convert to fraction form
    13,581.72/20,377.98 = 4,817.52/x
  3. Step 3: Cross multiply
    13,581.72x = 20,377.98 × 4,817.52
  4. Step 4: Simplify right side
    13,581.72x = 98,171,326.21
  5. Step 5: Solve for x
    x = 98,171,326.21/13,581.72
  6. Step 6: Final answer
    x = 7,228.20

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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.