Home / 9,120.08-13,680.16-2,546.72

Finding the Fourth Proportional to 9,120.08, 13,680.16 and 2,546.72

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Solution

The fourth proportional to 9,120.08, 13,680.16 and 2,546.72 is: 3,820.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.08 : 13,680.16 = 2,546.72 : x
  2. Step 2: Convert to fraction form
    9,120.08/13,680.16 = 2,546.72/x
  3. Step 3: Cross multiply
    9,120.08x = 13,680.16 × 2,546.72
  4. Step 4: Simplify right side
    9,120.08x = 34,839,537.08
  5. Step 5: Solve for x
    x = 34,839,537.08/9,120.08
  6. Step 6: Final answer
    x = 3,820.09

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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.