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Finding the Fourth Proportional to 6,866.86, 10,299.59 and 4,659.87

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Solution

The fourth proportional to 6,866.86, 10,299.59 and 4,659.87 is: 6,989.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,866.86 : 10,299.59 = 4,659.87 : x
  2. Step 2: Convert to fraction form
    6,866.86/10,299.59 = 4,659.87/x
  3. Step 3: Cross multiply
    6,866.86x = 10,299.59 × 4,659.87
  4. Step 4: Simplify right side
    6,866.86x = 47,994,750.45
  5. Step 5: Solve for x
    x = 47,994,750.45/6,866.86
  6. Step 6: Final answer
    x = 6,989.33

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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.