Home / 19,403.75-29,105.73-7,717.07

Finding the Fourth Proportional to 19,403.75, 29,105.73 and 7,717.07

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Solution

The fourth proportional to 19,403.75, 29,105.73 and 7,717.07 is: 11,575.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,403.75 : 29,105.73 = 7,717.07 : x
  2. Step 2: Convert to fraction form
    19,403.75/29,105.73 = 7,717.07/x
  3. Step 3: Cross multiply
    19,403.75x = 29,105.73 × 7,717.07
  4. Step 4: Simplify right side
    19,403.75x = 224,611,028.58
  5. Step 5: Solve for x
    x = 224,611,028.58/19,403.75
  6. Step 6: Final answer
    x = 11,575.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.