Home / 12,162.84-18,243.66-3,397.56

Finding the Fourth Proportional to 12,162.84, 18,243.66 and 3,397.56

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Solution

The fourth proportional to 12,162.84, 18,243.66 and 3,397.56 is: 5,096.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.84 : 18,243.66 = 3,397.56 : x
  2. Step 2: Convert to fraction form
    12,162.84/18,243.66 = 3,397.56/x
  3. Step 3: Cross multiply
    12,162.84x = 18,243.66 × 3,397.56
  4. Step 4: Simplify right side
    12,162.84x = 61,983,929.47
  5. Step 5: Solve for x
    x = 61,983,929.47/12,162.84
  6. Step 6: Final answer
    x = 5,096.17

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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.