Home / 12,248.69-18,375.21-4,243.05

Finding the Fourth Proportional to 12,248.69, 18,375.21 and 4,243.05

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Solution

The fourth proportional to 12,248.69, 18,375.21 and 4,243.05 is: 6,365.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248.69 : 18,375.21 = 4,243.05 : x
  2. Step 2: Convert to fraction form
    12,248.69/18,375.21 = 4,243.05/x
  3. Step 3: Cross multiply
    12,248.69x = 18,375.21 × 4,243.05
  4. Step 4: Simplify right side
    12,248.69x = 77,966,934.79
  5. Step 5: Solve for x
    x = 77,966,934.79/12,248.69
  6. Step 6: Final answer
    x = 6,365.33

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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.