Home / 12,241.40-18,362.10-4,449.20

Finding the Fourth Proportional to 12,241.40, 18,362.10 and 4,449.20

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Solution

The fourth proportional to 12,241.40, 18,362.10 and 4,449.20 is: 6,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,241.40 : 18,362.10 = 4,449.20 : x
  2. Step 2: Convert to fraction form
    12,241.40/18,362.10 = 4,449.20/x
  3. Step 3: Cross multiply
    12,241.40x = 18,362.10 × 4,449.20
  4. Step 4: Simplify right side
    12,241.40x = 81,696,655.32
  5. Step 5: Solve for x
    x = 81,696,655.32/12,241.40
  6. Step 6: Final answer
    x = 6,673.80

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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.