Home / 12,398.89-17,110.16-7,093.36

Finding the Fourth Proportional to 12,398.89, 17,110.16 and 7,093.36

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Solution

The fourth proportional to 12,398.89, 17,110.16 and 7,093.36 is: 9,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398.89 : 17,110.16 = 7,093.36 : x
  2. Step 2: Convert to fraction form
    12,398.89/17,110.16 = 7,093.36/x
  3. Step 3: Cross multiply
    12,398.89x = 17,110.16 × 7,093.36
  4. Step 4: Simplify right side
    12,398.89x = 121,368,524.54
  5. Step 5: Solve for x
    x = 121,368,524.54/12,398.89
  6. Step 6: Final answer
    x = 9,788.66

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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.