Home / 12,383.24-17,083.19-7,904.75

Finding the Fourth Proportional to 12,383.24, 17,083.19 and 7,904.75

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Solution

The fourth proportional to 12,383.24, 17,083.19 and 7,904.75 is: 10,904.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.24 : 17,083.19 = 7,904.75 : x
  2. Step 2: Convert to fraction form
    12,383.24/17,083.19 = 7,904.75/x
  3. Step 3: Cross multiply
    12,383.24x = 17,083.19 × 7,904.75
  4. Step 4: Simplify right side
    12,383.24x = 135,038,306.63
  5. Step 5: Solve for x
    x = 135,038,306.63/12,383.24
  6. Step 6: Final answer
    x = 10,904.93

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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.