Home / 8,705.25-13,040.60-4,309.29

Finding the Fourth Proportional to 8,705.25, 13,040.60 and 4,309.29

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Solution

The fourth proportional to 8,705.25, 13,040.60 and 4,309.29 is: 6,455.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.25 : 13,040.60 = 4,309.29 : x
  2. Step 2: Convert to fraction form
    8,705.25/13,040.60 = 4,309.29/x
  3. Step 3: Cross multiply
    8,705.25x = 13,040.60 × 4,309.29
  4. Step 4: Simplify right side
    8,705.25x = 56,195,705.63
  5. Step 5: Solve for x
    x = 56,195,705.63/8,705.25
  6. Step 6: Final answer
    x = 6,455.38

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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.