Home / 12,243.84-18,365.76-3,479.52

Finding the Fourth Proportional to 12,243.84, 18,365.76 and 3,479.52

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Solution

The fourth proportional to 12,243.84, 18,365.76 and 3,479.52 is: 5,219.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.84 : 18,365.76 = 3,479.52 : x
  2. Step 2: Convert to fraction form
    12,243.84/18,365.76 = 3,479.52/x
  3. Step 3: Cross multiply
    12,243.84x = 18,365.76 × 3,479.52
  4. Step 4: Simplify right side
    12,243.84x = 63,904,029.24
  5. Step 5: Solve for x
    x = 63,904,029.24/12,243.84
  6. Step 6: Final answer
    x = 5,219.28

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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.