Home / 8,789.94-13,177.40-3,240.50

Finding the Fourth Proportional to 8,789.94, 13,177.40 and 3,240.50

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Solution

The fourth proportional to 8,789.94, 13,177.40 and 3,240.50 is: 4,857.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789.94 : 13,177.40 = 3,240.50 : x
  2. Step 2: Convert to fraction form
    8,789.94/13,177.40 = 3,240.50/x
  3. Step 3: Cross multiply
    8,789.94x = 13,177.40 × 3,240.50
  4. Step 4: Simplify right side
    8,789.94x = 42,701,364.70
  5. Step 5: Solve for x
    x = 42,701,364.70/8,789.94
  6. Step 6: Final answer
    x = 4,857.98

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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.