Home / 13,309.58-18,363.84-9,766.64

Finding the Fourth Proportional to 13,309.58, 18,363.84 and 9,766.64

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Solution

The fourth proportional to 13,309.58, 18,363.84 and 9,766.64 is: 13,475.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.58 : 18,363.84 = 9,766.64 : x
  2. Step 2: Convert to fraction form
    13,309.58/18,363.84 = 9,766.64/x
  3. Step 3: Cross multiply
    13,309.58x = 18,363.84 × 9,766.64
  4. Step 4: Simplify right side
    13,309.58x = 179,353,014.30
  5. Step 5: Solve for x
    x = 179,353,014.30/13,309.58
  6. Step 6: Final answer
    x = 13,475.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.