Home / 12,388.50-17,097.30-7,083.36

Finding the Fourth Proportional to 12,388.50, 17,097.30 and 7,083.36

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Solution

The fourth proportional to 12,388.50, 17,097.30 and 7,083.36 is: 9,775.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,388.50 : 17,097.30 = 7,083.36 : x
  2. Step 2: Convert to fraction form
    12,388.50/17,097.30 = 7,083.36/x
  3. Step 3: Cross multiply
    12,388.50x = 17,097.30 × 7,083.36
  4. Step 4: Simplify right side
    12,388.50x = 121,106,330.93
  5. Step 5: Solve for x
    x = 121,106,330.93/12,388.50
  6. Step 6: Final answer
    x = 9,775.71

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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.