Home / 18,156.15-25,066.40-11,785.23

Finding the Fourth Proportional to 18,156.15, 25,066.40 and 11,785.23

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Solution

The fourth proportional to 18,156.15, 25,066.40 and 11,785.23 is: 16,270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156.15 : 25,066.40 = 11,785.23 : x
  2. Step 2: Convert to fraction form
    18,156.15/25,066.40 = 11,785.23/x
  3. Step 3: Cross multiply
    18,156.15x = 25,066.40 × 11,785.23
  4. Step 4: Simplify right side
    18,156.15x = 295,413,230.35
  5. Step 5: Solve for x
    x = 295,413,230.35/18,156.15
  6. Step 6: Final answer
    x = 16,270.70

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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.