Home / 9,078.12-13,616.70-2,921.64

Finding the Fourth Proportional to 9,078.12, 13,616.70 and 2,921.64

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Solution

The fourth proportional to 9,078.12, 13,616.70 and 2,921.64 is: 4,382.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.12 : 13,616.70 = 2,921.64 : x
  2. Step 2: Convert to fraction form
    9,078.12/13,616.70 = 2,921.64/x
  3. Step 3: Cross multiply
    9,078.12x = 13,616.70 × 2,921.64
  4. Step 4: Simplify right side
    9,078.12x = 39,783,095.39
  5. Step 5: Solve for x
    x = 39,783,095.39/9,078.12
  6. Step 6: Final answer
    x = 4,382.31

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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.