Home / 9,175.17-12,663.99-5,198.63

Finding the Fourth Proportional to 9,175.17, 12,663.99 and 5,198.63

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Solution

The fourth proportional to 9,175.17, 12,663.99 and 5,198.63 is: 7,175.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,175.17 : 12,663.99 = 5,198.63 : x
  2. Step 2: Convert to fraction form
    9,175.17/12,663.99 = 5,198.63/x
  3. Step 3: Cross multiply
    9,175.17x = 12,663.99 × 5,198.63
  4. Step 4: Simplify right side
    9,175.17x = 65,835,335.01
  5. Step 5: Solve for x
    x = 65,835,335.01/9,175.17
  6. Step 6: Final answer
    x = 7,175.38

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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.