Home / 18,702.37-25,812.61-11,149.19

Finding the Fourth Proportional to 18,702.37, 25,812.61 and 11,149.19

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Solution

The fourth proportional to 18,702.37, 25,812.61 and 11,149.19 is: 15,387.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.37 : 25,812.61 = 11,149.19 : x
  2. Step 2: Convert to fraction form
    18,702.37/25,812.61 = 11,149.19/x
  3. Step 3: Cross multiply
    18,702.37x = 25,812.61 × 11,149.19
  4. Step 4: Simplify right side
    18,702.37x = 287,789,744.26
  5. Step 5: Solve for x
    x = 287,789,744.26/18,702.37
  6. Step 6: Final answer
    x = 15,387.87

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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.