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Finding the Fourth Proportional to 8,690.76, 13,036.01 and 3,496.50

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Solution

The fourth proportional to 8,690.76, 13,036.01 and 3,496.50 is: 5,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.76 : 13,036.01 = 3,496.50 : x
  2. Step 2: Convert to fraction form
    8,690.76/13,036.01 = 3,496.50/x
  3. Step 3: Cross multiply
    8,690.76x = 13,036.01 × 3,496.50
  4. Step 4: Simplify right side
    8,690.76x = 45,580,391.48
  5. Step 5: Solve for x
    x = 45,580,391.48/8,690.76
  6. Step 6: Final answer
    x = 5,244.70

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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.