Home / 7,781.36-11,662.32-5,000.63

Finding the Fourth Proportional to 7,781.36, 11,662.32 and 5,000.63

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Solution

The fourth proportional to 7,781.36, 11,662.32 and 5,000.63 is: 7,494.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.36 : 11,662.32 = 5,000.63 : x
  2. Step 2: Convert to fraction form
    7,781.36/11,662.32 = 5,000.63/x
  3. Step 3: Cross multiply
    7,781.36x = 11,662.32 × 5,000.63
  4. Step 4: Simplify right side
    7,781.36x = 58,318,947.26
  5. Step 5: Solve for x
    x = 58,318,947.26/7,781.36
  6. Step 6: Final answer
    x = 7,494.70

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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.