Home / 13,177.80-19,766.70-4,411.80

Finding the Fourth Proportional to 13,177.80, 19,766.70 and 4,411.80

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Solution

The fourth proportional to 13,177.80, 19,766.70 and 4,411.80 is: 6,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.80 : 19,766.70 = 4,411.80 : x
  2. Step 2: Convert to fraction form
    13,177.80/19,766.70 = 4,411.80/x
  3. Step 3: Cross multiply
    13,177.80x = 19,766.70 × 4,411.80
  4. Step 4: Simplify right side
    13,177.80x = 87,206,727.06
  5. Step 5: Solve for x
    x = 87,206,727.06/13,177.80
  6. Step 6: Final answer
    x = 6,617.70

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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.