Home / 11,869.65-17,807.73-8,531.64

Finding the Fourth Proportional to 11,869.65, 17,807.73 and 8,531.64

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Solution

The fourth proportional to 11,869.65, 17,807.73 and 8,531.64 is: 12,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869.65 : 17,807.73 = 8,531.64 : x
  2. Step 2: Convert to fraction form
    11,869.65/17,807.73 = 8,531.64/x
  3. Step 3: Cross multiply
    11,869.65x = 17,807.73 × 8,531.64
  4. Step 4: Simplify right side
    11,869.65x = 151,929,141.58
  5. Step 5: Solve for x
    x = 151,929,141.58/11,869.65
  6. Step 6: Final answer
    x = 12,799.80

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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.