Home / 11,417.39-15,760.85-6,942.57

Finding the Fourth Proportional to 11,417.39, 15,760.85 and 6,942.57

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Solution

The fourth proportional to 11,417.39, 15,760.85 and 6,942.57 is: 9,583.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,417.39 : 15,760.85 = 6,942.57 : x
  2. Step 2: Convert to fraction form
    11,417.39/15,760.85 = 6,942.57/x
  3. Step 3: Cross multiply
    11,417.39x = 15,760.85 × 6,942.57
  4. Step 4: Simplify right side
    11,417.39x = 109,420,854.81
  5. Step 5: Solve for x
    x = 109,420,854.81/11,417.39
  6. Step 6: Final answer
    x = 9,583.71

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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.