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Finding the Fourth Proportional to 7,727.55, 11,578.95 and 7,522.53

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Solution

The fourth proportional to 7,727.55, 11,578.95 and 7,522.53 is: 11,271.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.55 : 11,578.95 = 7,522.53 : x
  2. Step 2: Convert to fraction form
    7,727.55/11,578.95 = 7,522.53/x
  3. Step 3: Cross multiply
    7,727.55x = 11,578.95 × 7,522.53
  4. Step 4: Simplify right side
    7,727.55x = 87,102,998.74
  5. Step 5: Solve for x
    x = 87,102,998.74/7,727.55
  6. Step 6: Final answer
    x = 11,271.75

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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.