Home / 18,366.30-25,345.26-9,982.80

Finding the Fourth Proportional to 18,366.30, 25,345.26 and 9,982.80

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Solution

The fourth proportional to 18,366.30, 25,345.26 and 9,982.80 is: 13,776.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,366.30 : 25,345.26 = 9,982.80 : x
  2. Step 2: Convert to fraction form
    18,366.30/25,345.26 = 9,982.80/x
  3. Step 3: Cross multiply
    18,366.30x = 25,345.26 × 9,982.80
  4. Step 4: Simplify right side
    18,366.30x = 253,016,661.53
  5. Step 5: Solve for x
    x = 253,016,661.53/18,366.30
  6. Step 6: Final answer
    x = 13,776.14

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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.