Home / 8,285.83-12,409.61-4,991.66

Finding the Fourth Proportional to 8,285.83, 12,409.61 and 4,991.66

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Solution

The fourth proportional to 8,285.83, 12,409.61 and 4,991.66 is: 7,475.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.83 : 12,409.61 = 4,991.66 : x
  2. Step 2: Convert to fraction form
    8,285.83/12,409.61 = 4,991.66/x
  3. Step 3: Cross multiply
    8,285.83x = 12,409.61 × 4,991.66
  4. Step 4: Simplify right side
    8,285.83x = 61,944,513.38
  5. Step 5: Solve for x
    x = 61,944,513.38/8,285.83
  6. Step 6: Final answer
    x = 7,475.96

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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.