Home / 11,134.69-15,368.39-6,942.13

Finding the Fourth Proportional to 11,134.69, 15,368.39 and 6,942.13

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Solution

The fourth proportional to 11,134.69, 15,368.39 and 6,942.13 is: 9,581.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,134.69 : 15,368.39 = 6,942.13 : x
  2. Step 2: Convert to fraction form
    11,134.69/15,368.39 = 6,942.13/x
  3. Step 3: Cross multiply
    11,134.69x = 15,368.39 × 6,942.13
  4. Step 4: Simplify right side
    11,134.69x = 106,689,361.27
  5. Step 5: Solve for x
    x = 106,689,361.27/11,134.69
  6. Step 6: Final answer
    x = 9,581.71

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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.