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Finding the Fourth Proportional to 7,785.92, 11,663.26 and 7,377.08

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Solution

The fourth proportional to 7,785.92, 11,663.26 and 7,377.08 is: 11,050.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.92 : 11,663.26 = 7,377.08 : x
  2. Step 2: Convert to fraction form
    7,785.92/11,663.26 = 7,377.08/x
  3. Step 3: Cross multiply
    7,785.92x = 11,663.26 × 7,377.08
  4. Step 4: Simplify right side
    7,785.92x = 86,040,802.08
  5. Step 5: Solve for x
    x = 86,040,802.08/7,785.92
  6. Step 6: Final answer
    x = 11,050.82

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1.5x scale

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.