Home / 12,347.82-18,519.24-4,554.78

Finding the Fourth Proportional to 12,347.82, 18,519.24 and 4,554.78

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Solution

The fourth proportional to 12,347.82, 18,519.24 and 4,554.78 is: 6,831.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.82 : 18,519.24 = 4,554.78 : x
  2. Step 2: Convert to fraction form
    12,347.82/18,519.24 = 4,554.78/x
  3. Step 3: Cross multiply
    12,347.82x = 18,519.24 × 4,554.78
  4. Step 4: Simplify right side
    12,347.82x = 84,351,063.97
  5. Step 5: Solve for x
    x = 84,351,063.97/12,347.82
  6. Step 6: Final answer
    x = 6,831.25

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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.