Home / 10,930.07-16,395.11-3,138.89

Finding the Fourth Proportional to 10,930.07, 16,395.11 and 3,138.89

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Solution

The fourth proportional to 10,930.07, 16,395.11 and 3,138.89 is: 4,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.07 : 16,395.11 = 3,138.89 : x
  2. Step 2: Convert to fraction form
    10,930.07/16,395.11 = 3,138.89/x
  3. Step 3: Cross multiply
    10,930.07x = 16,395.11 × 3,138.89
  4. Step 4: Simplify right side
    10,930.07x = 51,462,360.93
  5. Step 5: Solve for x
    x = 51,462,360.93/10,930.07
  6. Step 6: Final answer
    x = 4,708.33

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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.