Home / 8,511.55-12,758.01-7,275.18

Finding the Fourth Proportional to 8,511.55, 12,758.01 and 7,275.18

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Solution

The fourth proportional to 8,511.55, 12,758.01 and 7,275.18 is: 10,904.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.55 : 12,758.01 = 7,275.18 : x
  2. Step 2: Convert to fraction form
    8,511.55/12,758.01 = 7,275.18/x
  3. Step 3: Cross multiply
    8,511.55x = 12,758.01 × 7,275.18
  4. Step 4: Simplify right side
    8,511.55x = 92,816,839.75
  5. Step 5: Solve for x
    x = 92,816,839.75/8,511.55
  6. Step 6: Final answer
    x = 10,904.81

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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.