Home / 16,065.32-22,170.11-9,777.69

Finding the Fourth Proportional to 16,065.32, 22,170.11 and 9,777.69

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Solution

The fourth proportional to 16,065.32, 22,170.11 and 9,777.69 is: 13,493.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,065.32 : 22,170.11 = 9,777.69 : x
  2. Step 2: Convert to fraction form
    16,065.32/22,170.11 = 9,777.69/x
  3. Step 3: Cross multiply
    16,065.32x = 22,170.11 × 9,777.69
  4. Step 4: Simplify right side
    16,065.32x = 216,772,413.96
  5. Step 5: Solve for x
    x = 216,772,413.96/16,065.32
  6. Step 6: Final answer
    x = 13,493.19

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Half scale
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Double scale
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Similar ratio
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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.