Home / 10,305.88-15,458.65-3,285.81

Finding the Fourth Proportional to 10,305.88, 15,458.65 and 3,285.81

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Solution

The fourth proportional to 10,305.88, 15,458.65 and 3,285.81 is: 4,928.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.88 : 15,458.65 = 3,285.81 : x
  2. Step 2: Convert to fraction form
    10,305.88/15,458.65 = 3,285.81/x
  3. Step 3: Cross multiply
    10,305.88x = 15,458.65 × 3,285.81
  4. Step 4: Simplify right side
    10,305.88x = 50,794,178.54
  5. Step 5: Solve for x
    x = 50,794,178.54/10,305.88
  6. Step 6: Final answer
    x = 4,928.66

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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.