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Finding the Fourth Proportional to 8,699.22, 13,030.83 and 5,778.90

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Solution

The fourth proportional to 8,699.22, 13,030.83 and 5,778.90 is: 8,656.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.22 : 13,030.83 = 5,778.90 : x
  2. Step 2: Convert to fraction form
    8,699.22/13,030.83 = 5,778.90/x
  3. Step 3: Cross multiply
    8,699.22x = 13,030.83 × 5,778.90
  4. Step 4: Simplify right side
    8,699.22x = 75,303,863.49
  5. Step 5: Solve for x
    x = 75,303,863.49/8,699.22
  6. Step 6: Final answer
    x = 8,656.39

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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.