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Finding the Fourth Proportional to 12,388.68, 17,096.67 and 7,083.99

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Solution

The fourth proportional to 12,388.68, 17,096.67 and 7,083.99 is: 9,776.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,388.68 : 17,096.67 = 7,083.99 : x
  2. Step 2: Convert to fraction form
    12,388.68/17,096.67 = 7,083.99/x
  3. Step 3: Cross multiply
    12,388.68x = 17,096.67 × 7,083.99
  4. Step 4: Simplify right side
    12,388.68x = 121,112,639.31
  5. Step 5: Solve for x
    x = 121,112,639.31/12,388.68
  6. Step 6: Final answer
    x = 9,776.07

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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.