Home / 13,491.92-20,237.80-3,630.36

Finding the Fourth Proportional to 13,491.92, 20,237.80 and 3,630.36

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Solution

The fourth proportional to 13,491.92, 20,237.80 and 3,630.36 is: 5,445.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.92 : 20,237.80 = 3,630.36 : x
  2. Step 2: Convert to fraction form
    13,491.92/20,237.80 = 3,630.36/x
  3. Step 3: Cross multiply
    13,491.92x = 20,237.80 × 3,630.36
  4. Step 4: Simplify right side
    13,491.92x = 73,470,499.61
  5. Step 5: Solve for x
    x = 73,470,499.61/13,491.92
  6. Step 6: Final answer
    x = 5,445.52

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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.