Home / 12,282.44-18,420.96-4,885.52

Finding the Fourth Proportional to 12,282.44, 18,420.96 and 4,885.52

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Solution

The fourth proportional to 12,282.44, 18,420.96 and 4,885.52 is: 7,327.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.44 : 18,420.96 = 4,885.52 : x
  2. Step 2: Convert to fraction form
    12,282.44/18,420.96 = 4,885.52/x
  3. Step 3: Cross multiply
    12,282.44x = 18,420.96 × 4,885.52
  4. Step 4: Simplify right side
    12,282.44x = 89,995,968.50
  5. Step 5: Solve for x
    x = 89,995,968.50/12,282.44
  6. Step 6: Final answer
    x = 7,327.21

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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.