Home / 10,678.14-16,008.91-6,921.99

Finding the Fourth Proportional to 10,678.14, 16,008.91 and 6,921.99

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Solution

The fourth proportional to 10,678.14, 16,008.91 and 6,921.99 is: 10,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.14 : 16,008.91 = 6,921.99 : x
  2. Step 2: Convert to fraction form
    10,678.14/16,008.91 = 6,921.99/x
  3. Step 3: Cross multiply
    10,678.14x = 16,008.91 × 6,921.99
  4. Step 4: Simplify right side
    10,678.14x = 110,813,514.93
  5. Step 5: Solve for x
    x = 110,813,514.93/10,678.14
  6. Step 6: Final answer
    x = 10,377.60

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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.