Home / 11,531.30-15,913.61-6,427.27

Finding the Fourth Proportional to 11,531.30, 15,913.61 and 6,427.27

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Solution

The fourth proportional to 11,531.30, 15,913.61 and 6,427.27 is: 8,869.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,531.30 : 15,913.61 = 6,427.27 : x
  2. Step 2: Convert to fraction form
    11,531.30/15,913.61 = 6,427.27/x
  3. Step 3: Cross multiply
    11,531.30x = 15,913.61 × 6,427.27
  4. Step 4: Simplify right side
    11,531.30x = 102,281,080.00
  5. Step 5: Solve for x
    x = 102,281,080.00/11,531.30
  6. Step 6: Final answer
    x = 8,869.87

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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.