Home / 10,380.27-14,324.77-6,403.69

Finding the Fourth Proportional to 10,380.27, 14,324.77 and 6,403.69

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Solution

The fourth proportional to 10,380.27, 14,324.77 and 6,403.69 is: 8,837.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.27 : 14,324.77 = 6,403.69 : x
  2. Step 2: Convert to fraction form
    10,380.27/14,324.77 = 6,403.69/x
  3. Step 3: Cross multiply
    10,380.27x = 14,324.77 × 6,403.69
  4. Step 4: Simplify right side
    10,380.27x = 91,731,412.31
  5. Step 5: Solve for x
    x = 91,731,412.31/10,380.27
  6. Step 6: Final answer
    x = 8,837.09

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Half scale
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1.5x scale

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.