Home / 12,220.24-18,332.40-4,439.92

Finding the Fourth Proportional to 12,220.24, 18,332.40 and 4,439.92

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Solution

The fourth proportional to 12,220.24, 18,332.40 and 4,439.92 is: 6,660.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.24 : 18,332.40 = 4,439.92 : x
  2. Step 2: Convert to fraction form
    12,220.24/18,332.40 = 4,439.92/x
  3. Step 3: Cross multiply
    12,220.24x = 18,332.40 × 4,439.92
  4. Step 4: Simplify right side
    12,220.24x = 81,394,389.41
  5. Step 5: Solve for x
    x = 81,394,389.41/12,220.24
  6. Step 6: Final answer
    x = 6,660.62

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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.