Home / 18,163.35-25,065.10-11,089.77

Finding the Fourth Proportional to 18,163.35, 25,065.10 and 11,089.77

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Solution

The fourth proportional to 18,163.35, 25,065.10 and 11,089.77 is: 15,303.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.35 : 25,065.10 = 11,089.77 : x
  2. Step 2: Convert to fraction form
    18,163.35/25,065.10 = 11,089.77/x
  3. Step 3: Cross multiply
    18,163.35x = 25,065.10 × 11,089.77
  4. Step 4: Simplify right side
    18,163.35x = 277,966,113.90
  5. Step 5: Solve for x
    x = 277,966,113.90/18,163.35
  6. Step 6: Final answer
    x = 15,303.68

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Half scale
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Double scale
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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.