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Finding the Fourth Proportional to 8,855.90, 13,282.94 and 4,691.49

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Solution

The fourth proportional to 8,855.90, 13,282.94 and 4,691.49 is: 7,036.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.90 : 13,282.94 = 4,691.49 : x
  2. Step 2: Convert to fraction form
    8,855.90/13,282.94 = 4,691.49/x
  3. Step 3: Cross multiply
    8,855.90x = 13,282.94 × 4,691.49
  4. Step 4: Simplify right side
    8,855.90x = 62,316,756.72
  5. Step 5: Solve for x
    x = 62,316,756.72/8,855.90
  6. Step 6: Final answer
    x = 7,036.75

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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.