Home / 9,129.95-13,694.96-3,286.56

Finding the Fourth Proportional to 9,129.95, 13,694.96 and 3,286.56

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Solution

The fourth proportional to 9,129.95, 13,694.96 and 3,286.56 is: 4,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.95 : 13,694.96 = 3,286.56 : x
  2. Step 2: Convert to fraction form
    9,129.95/13,694.96 = 3,286.56/x
  3. Step 3: Cross multiply
    9,129.95x = 13,694.96 × 3,286.56
  4. Step 4: Simplify right side
    9,129.95x = 45,009,307.74
  5. Step 5: Solve for x
    x = 45,009,307.74/9,129.95
  6. Step 6: Final answer
    x = 4,929.85

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1.5x scale

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.