Home / 9,965.64-14,949.78-3,390.06

Finding the Fourth Proportional to 9,965.64, 14,949.78 and 3,390.06

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Solution

The fourth proportional to 9,965.64, 14,949.78 and 3,390.06 is: 5,085.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965.64 : 14,949.78 = 3,390.06 : x
  2. Step 2: Convert to fraction form
    9,965.64/14,949.78 = 3,390.06/x
  3. Step 3: Cross multiply
    9,965.64x = 14,949.78 × 3,390.06
  4. Step 4: Simplify right side
    9,965.64x = 50,680,651.19
  5. Step 5: Solve for x
    x = 50,680,651.19/9,965.64
  6. Step 6: Final answer
    x = 5,085.54

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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.