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Finding the Fourth Proportional to 8,518.62, 11,754.88 and 6,281.71

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Solution

The fourth proportional to 8,518.62, 11,754.88 and 6,281.71 is: 8,668.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.62 : 11,754.88 = 6,281.71 : x
  2. Step 2: Convert to fraction form
    8,518.62/11,754.88 = 6,281.71/x
  3. Step 3: Cross multiply
    8,518.62x = 11,754.88 × 6,281.71
  4. Step 4: Simplify right side
    8,518.62x = 73,840,747.24
  5. Step 5: Solve for x
    x = 73,840,747.24/8,518.62
  6. Step 6: Final answer
    x = 8,668.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.