Home / 11,129.36-16,685.76-6,745.76

Finding the Fourth Proportional to 11,129.36, 16,685.76 and 6,745.76

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Solution

The fourth proportional to 11,129.36, 16,685.76 and 6,745.76 is: 10,113.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.36 : 16,685.76 = 6,745.76 : x
  2. Step 2: Convert to fraction form
    11,129.36/16,685.76 = 6,745.76/x
  3. Step 3: Cross multiply
    11,129.36x = 16,685.76 × 6,745.76
  4. Step 4: Simplify right side
    11,129.36x = 112,558,132.38
  5. Step 5: Solve for x
    x = 112,558,132.38/11,129.36
  6. Step 6: Final answer
    x = 10,113.62

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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.