Home / 11,772.15-17,740.92-10,603.62

Finding the Fourth Proportional to 11,772.15, 17,740.92 and 10,603.62

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Solution

The fourth proportional to 11,772.15, 17,740.92 and 10,603.62 is: 15,979.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,772.15 : 17,740.92 = 10,603.62 : x
  2. Step 2: Convert to fraction form
    11,772.15/17,740.92 = 10,603.62/x
  3. Step 3: Cross multiply
    11,772.15x = 17,740.92 × 10,603.62
  4. Step 4: Simplify right side
    11,772.15x = 188,117,974.13
  5. Step 5: Solve for x
    x = 188,117,974.13/11,772.15
  6. Step 6: Final answer
    x = 15,979.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.