Home / 10,530.27-15,785.64-3,960.81

Finding the Fourth Proportional to 10,530.27, 15,785.64 and 3,960.81

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Solution

The fourth proportional to 10,530.27, 15,785.64 and 3,960.81 is: 5,937.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530.27 : 15,785.64 = 3,960.81 : x
  2. Step 2: Convert to fraction form
    10,530.27/15,785.64 = 3,960.81/x
  3. Step 3: Cross multiply
    10,530.27x = 15,785.64 × 3,960.81
  4. Step 4: Simplify right side
    10,530.27x = 62,523,920.77
  5. Step 5: Solve for x
    x = 62,523,920.77/10,530.27
  6. Step 6: Final answer
    x = 5,937.54

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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.