Home / 15,717.38-23,578.73-7,820.33

Finding the Fourth Proportional to 15,717.38, 23,578.73 and 7,820.33

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Solution

The fourth proportional to 15,717.38, 23,578.73 and 7,820.33 is: 11,731.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,717.38 : 23,578.73 = 7,820.33 : x
  2. Step 2: Convert to fraction form
    15,717.38/23,578.73 = 7,820.33/x
  3. Step 3: Cross multiply
    15,717.38x = 23,578.73 × 7,820.33
  4. Step 4: Simplify right side
    15,717.38x = 184,393,292.59
  5. Step 5: Solve for x
    x = 184,393,292.59/15,717.38
  6. Step 6: Final answer
    x = 11,731.81

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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.