Home / 8,705.09-13,059.25-2,865.80

Finding the Fourth Proportional to 8,705.09, 13,059.25 and 2,865.80

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Solution

The fourth proportional to 8,705.09, 13,059.25 and 2,865.80 is: 4,299.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.09 : 13,059.25 = 2,865.80 : x
  2. Step 2: Convert to fraction form
    8,705.09/13,059.25 = 2,865.80/x
  3. Step 3: Cross multiply
    8,705.09x = 13,059.25 × 2,865.80
  4. Step 4: Simplify right side
    8,705.09x = 37,425,126.19
  5. Step 5: Solve for x
    x = 37,425,126.19/8,705.09
  6. Step 6: Final answer
    x = 4,299.23

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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.