Home / 12,243.91-18,365.88-3,477.70

Finding the Fourth Proportional to 12,243.91, 18,365.88 and 3,477.70

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Solution

The fourth proportional to 12,243.91, 18,365.88 and 3,477.70 is: 5,216.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.91 : 18,365.88 = 3,477.70 : x
  2. Step 2: Convert to fraction form
    12,243.91/18,365.88 = 3,477.70/x
  3. Step 3: Cross multiply
    12,243.91x = 18,365.88 × 3,477.70
  4. Step 4: Simplify right side
    12,243.91x = 63,871,020.88
  5. Step 5: Solve for x
    x = 63,871,020.88/12,243.91
  6. Step 6: Final answer
    x = 5,216.55

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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.