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Finding the Fourth Proportional to 8,684.80, 13,035.88 and 4,791.04

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Solution

The fourth proportional to 8,684.80, 13,035.88 and 4,791.04 is: 7,191.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.80 : 13,035.88 = 4,791.04 : x
  2. Step 2: Convert to fraction form
    8,684.80/13,035.88 = 4,791.04/x
  3. Step 3: Cross multiply
    8,684.80x = 13,035.88 × 4,791.04
  4. Step 4: Simplify right side
    8,684.80x = 62,455,422.52
  5. Step 5: Solve for x
    x = 62,455,422.52/8,684.80
  6. Step 6: Final answer
    x = 7,191.35

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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.