Home / 11,871.60-16,382.16-6,566.10

Finding the Fourth Proportional to 11,871.60, 16,382.16 and 6,566.10

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Solution

The fourth proportional to 11,871.60, 16,382.16 and 6,566.10 is: 9,060.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,871.60 : 16,382.16 = 6,566.10 : x
  2. Step 2: Convert to fraction form
    11,871.60/16,382.16 = 6,566.10/x
  3. Step 3: Cross multiply
    11,871.60x = 16,382.16 × 6,566.10
  4. Step 4: Simplify right side
    11,871.60x = 107,566,900.78
  5. Step 5: Solve for x
    x = 107,566,900.78/11,871.60
  6. Step 6: Final answer
    x = 9,060.86

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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.