Home / 11,867.16-16,380.09-7,836.93

Finding the Fourth Proportional to 11,867.16, 16,380.09 and 7,836.93

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Solution

The fourth proportional to 11,867.16, 16,380.09 and 7,836.93 is: 10,817.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.16 : 16,380.09 = 7,836.93 : x
  2. Step 2: Convert to fraction form
    11,867.16/16,380.09 = 7,836.93/x
  3. Step 3: Cross multiply
    11,867.16x = 16,380.09 × 7,836.93
  4. Step 4: Simplify right side
    11,867.16x = 128,369,618.72
  5. Step 5: Solve for x
    x = 128,369,618.72/11,867.16
  6. Step 6: Final answer
    x = 10,817.21

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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.