Home / 13,548.48-18,688.68-8,247

Finding the Fourth Proportional to 13,548.48, 18,688.68 and 8,247

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Solution

The fourth proportional to 13,548.48, 18,688.68 and 8,247 is: 11,375.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.48 : 18,688.68 = 8,247 : x
  2. Step 2: Convert to fraction form
    13,548.48/18,688.68 = 8,247/x
  3. Step 3: Cross multiply
    13,548.48x = 18,688.68 × 8,247
  4. Step 4: Simplify right side
    13,548.48x = 154,125,543.96
  5. Step 5: Solve for x
    x = 154,125,543.96/13,548.48
  6. Step 6: Final answer
    x = 11,375.86

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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.