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Finding the Fourth Proportional to 8,655.64, 12,994.98 and 5,853.88

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Solution

The fourth proportional to 8,655.64, 12,994.98 and 5,853.88 is: 8,788.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.64 : 12,994.98 = 5,853.88 : x
  2. Step 2: Convert to fraction form
    8,655.64/12,994.98 = 5,853.88/x
  3. Step 3: Cross multiply
    8,655.64x = 12,994.98 × 5,853.88
  4. Step 4: Simplify right side
    8,655.64x = 76,071,053.52
  5. Step 5: Solve for x
    x = 76,071,053.52/8,655.64
  6. Step 6: Final answer
    x = 8,788.62

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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.