Home / 10,678.26-16,035.40-8,921.46

Finding the Fourth Proportional to 10,678.26, 16,035.40 and 8,921.46

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Solution

The fourth proportional to 10,678.26, 16,035.40 and 8,921.46 is: 13,397.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.26 : 16,035.40 = 8,921.46 : x
  2. Step 2: Convert to fraction form
    10,678.26/16,035.40 = 8,921.46/x
  3. Step 3: Cross multiply
    10,678.26x = 16,035.40 × 8,921.46
  4. Step 4: Simplify right side
    10,678.26x = 143,059,179.68
  5. Step 5: Solve for x
    x = 143,059,179.68/10,678.26
  6. Step 6: Final answer
    x = 13,397.24

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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.