Home / 12,531.78-17,297.55-7,230.33

Finding the Fourth Proportional to 12,531.78, 17,297.55 and 7,230.33

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Solution

The fourth proportional to 12,531.78, 17,297.55 and 7,230.33 is: 9,979.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.78 : 17,297.55 = 7,230.33 : x
  2. Step 2: Convert to fraction form
    12,531.78/17,297.55 = 7,230.33/x
  3. Step 3: Cross multiply
    12,531.78x = 17,297.55 × 7,230.33
  4. Step 4: Simplify right side
    12,531.78x = 125,066,994.69
  5. Step 5: Solve for x
    x = 125,066,994.69/12,531.78
  6. Step 6: Final answer
    x = 9,979.99

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Similar ratio
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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.