Home / 9,175.65-12,662.39-5,197.53

Finding the Fourth Proportional to 9,175.65, 12,662.39 and 5,197.53

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Solution

The fourth proportional to 9,175.65, 12,662.39 and 5,197.53 is: 7,172.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,175.65 : 12,662.39 = 5,197.53 : x
  2. Step 2: Convert to fraction form
    9,175.65/12,662.39 = 5,197.53/x
  3. Step 3: Cross multiply
    9,175.65x = 12,662.39 × 5,197.53
  4. Step 4: Simplify right side
    9,175.65x = 65,813,212.37
  5. Step 5: Solve for x
    x = 65,813,212.37/9,175.65
  6. Step 6: Final answer
    x = 7,172.59

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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.