Home / 12,403.91-17,117.52-6,738.77

Finding the Fourth Proportional to 12,403.91, 17,117.52 and 6,738.77

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Solution

The fourth proportional to 12,403.91, 17,117.52 and 6,738.77 is: 9,299.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.91 : 17,117.52 = 6,738.77 : x
  2. Step 2: Convert to fraction form
    12,403.91/17,117.52 = 6,738.77/x
  3. Step 3: Cross multiply
    12,403.91x = 17,117.52 × 6,738.77
  4. Step 4: Simplify right side
    12,403.91x = 115,350,944.66
  5. Step 5: Solve for x
    x = 115,350,944.66/12,403.91
  6. Step 6: Final answer
    x = 9,299.57

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Half scale
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Double scale
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Similar ratio
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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.