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Finding the Fourth Proportional to 8,686.58, 13,029.88 and 2,446.59

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Solution

The fourth proportional to 8,686.58, 13,029.88 and 2,446.59 is: 3,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.58 : 13,029.88 = 2,446.59 : x
  2. Step 2: Convert to fraction form
    8,686.58/13,029.88 = 2,446.59/x
  3. Step 3: Cross multiply
    8,686.58x = 13,029.88 × 2,446.59
  4. Step 4: Simplify right side
    8,686.58x = 31,878,748.15
  5. Step 5: Solve for x
    x = 31,878,748.15/8,686.58
  6. Step 6: Final answer
    x = 3,669.89

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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.