Home / 12,252.41-18,378.88-3,487.60

Finding the Fourth Proportional to 12,252.41, 18,378.88 and 3,487.60

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Solution

The fourth proportional to 12,252.41, 18,378.88 and 3,487.60 is: 5,231.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.41 : 18,378.88 = 3,487.60 : x
  2. Step 2: Convert to fraction form
    12,252.41/18,378.88 = 3,487.60/x
  3. Step 3: Cross multiply
    12,252.41x = 18,378.88 × 3,487.60
  4. Step 4: Simplify right side
    12,252.41x = 64,098,127.22
  5. Step 5: Solve for x
    x = 64,098,127.22/12,252.41
  6. Step 6: Final answer
    x = 5,231.47

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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.