Home / 8,935.31-13,399.09-3,937.57

Finding the Fourth Proportional to 8,935.31, 13,399.09 and 3,937.57

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Solution

The fourth proportional to 8,935.31, 13,399.09 and 3,937.57 is: 5,904.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.31 : 13,399.09 = 3,937.57 : x
  2. Step 2: Convert to fraction form
    8,935.31/13,399.09 = 3,937.57/x
  3. Step 3: Cross multiply
    8,935.31x = 13,399.09 × 3,937.57
  4. Step 4: Simplify right side
    8,935.31x = 52,759,854.81
  5. Step 5: Solve for x
    x = 52,759,854.81/8,935.31
  6. Step 6: Final answer
    x = 5,904.65

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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.