Home / 7,727.15-11,563.04-6,690.74

Finding the Fourth Proportional to 7,727.15, 11,563.04 and 6,690.74

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Solution

The fourth proportional to 7,727.15, 11,563.04 and 6,690.74 is: 10,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.15 : 11,563.04 = 6,690.74 : x
  2. Step 2: Convert to fraction form
    7,727.15/11,563.04 = 6,690.74/x
  3. Step 3: Cross multiply
    7,727.15x = 11,563.04 × 6,690.74
  4. Step 4: Simplify right side
    7,727.15x = 77,365,202.98
  5. Step 5: Solve for x
    x = 77,365,202.98/7,727.15
  6. Step 6: Final answer
    x = 10,012.13

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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.