Home / 12,656.03-17,464.55-7,621.88

Finding the Fourth Proportional to 12,656.03, 17,464.55 and 7,621.88

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Solution

The fourth proportional to 12,656.03, 17,464.55 and 7,621.88 is: 10,517.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.03 : 17,464.55 = 7,621.88 : x
  2. Step 2: Convert to fraction form
    12,656.03/17,464.55 = 7,621.88/x
  3. Step 3: Cross multiply
    12,656.03x = 17,464.55 × 7,621.88
  4. Step 4: Simplify right side
    12,656.03x = 133,112,704.35
  5. Step 5: Solve for x
    x = 133,112,704.35/12,656.03
  6. Step 6: Final answer
    x = 10,517.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.