Home / 8,870.75-13,309.26-3,939.94

Finding the Fourth Proportional to 8,870.75, 13,309.26 and 3,939.94

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Solution

The fourth proportional to 8,870.75, 13,309.26 and 3,939.94 is: 5,911.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870.75 : 13,309.26 = 3,939.94 : x
  2. Step 2: Convert to fraction form
    8,870.75/13,309.26 = 3,939.94/x
  3. Step 3: Cross multiply
    8,870.75x = 13,309.26 × 3,939.94
  4. Step 4: Simplify right side
    8,870.75x = 52,437,599.60
  5. Step 5: Solve for x
    x = 52,437,599.60/8,870.75
  6. Step 6: Final answer
    x = 5,911.30

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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.