Home / 7,813.08-11,720.84-2,617.74

Finding the Fourth Proportional to 7,813.08, 11,720.84 and 2,617.74

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Solution

The fourth proportional to 7,813.08, 11,720.84 and 2,617.74 is: 3,927.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.08 : 11,720.84 = 2,617.74 : x
  2. Step 2: Convert to fraction form
    7,813.08/11,720.84 = 2,617.74/x
  3. Step 3: Cross multiply
    7,813.08x = 11,720.84 × 2,617.74
  4. Step 4: Simplify right side
    7,813.08x = 30,682,098.61
  5. Step 5: Solve for x
    x = 30,682,098.61/7,813.08
  6. Step 6: Final answer
    x = 3,927.02

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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.