Home / 12,243.09-18,335.46-9,449.40

Finding the Fourth Proportional to 12,243.09, 18,335.46 and 9,449.40

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Solution

The fourth proportional to 12,243.09, 18,335.46 and 9,449.40 is: 14,151.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.09 : 18,335.46 = 9,449.40 : x
  2. Step 2: Convert to fraction form
    12,243.09/18,335.46 = 9,449.40/x
  3. Step 3: Cross multiply
    12,243.09x = 18,335.46 × 9,449.40
  4. Step 4: Simplify right side
    12,243.09x = 173,259,095.72
  5. Step 5: Solve for x
    x = 173,259,095.72/12,243.09
  6. Step 6: Final answer
    x = 14,151.58

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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.