Home / 11,640.18-17,455.14-3,318.31

Finding the Fourth Proportional to 11,640.18, 17,455.14 and 3,318.31

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Solution

The fourth proportional to 11,640.18, 17,455.14 and 3,318.31 is: 4,976.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.18 : 17,455.14 = 3,318.31 : x
  2. Step 2: Convert to fraction form
    11,640.18/17,455.14 = 3,318.31/x
  3. Step 3: Cross multiply
    11,640.18x = 17,455.14 × 3,318.31
  4. Step 4: Simplify right side
    11,640.18x = 57,921,521.98
  5. Step 5: Solve for x
    x = 57,921,521.98/11,640.18
  6. Step 6: Final answer
    x = 4,976.00

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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.