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Finding the Fourth Proportional to 16,661.81, 24,975.29 and 7,886.27

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Solution

The fourth proportional to 16,661.81, 24,975.29 and 7,886.27 is: 11,821.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,661.81 : 24,975.29 = 7,886.27 : x
  2. Step 2: Convert to fraction form
    16,661.81/24,975.29 = 7,886.27/x
  3. Step 3: Cross multiply
    16,661.81x = 24,975.29 × 7,886.27
  4. Step 4: Simplify right side
    16,661.81x = 196,961,775.11
  5. Step 5: Solve for x
    x = 196,961,775.11/16,661.81
  6. Step 6: Final answer
    x = 11,821.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.