Home / 12,383.40-17,089.11-7,350.06

Finding the Fourth Proportional to 12,383.40, 17,089.11 and 7,350.06

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Solution

The fourth proportional to 12,383.40, 17,089.11 and 7,350.06 is: 10,143.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.40 : 17,089.11 = 7,350.06 : x
  2. Step 2: Convert to fraction form
    12,383.40/17,089.11 = 7,350.06/x
  3. Step 3: Cross multiply
    12,383.40x = 17,089.11 × 7,350.06
  4. Step 4: Simplify right side
    12,383.40x = 125,605,983.85
  5. Step 5: Solve for x
    x = 125,605,983.85/12,383.40
  6. Step 6: Final answer
    x = 10,143.09

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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.