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Finding the Fourth Proportional to 8,444.51, 12,664.81 and 2,520.87

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Solution

The fourth proportional to 8,444.51, 12,664.81 and 2,520.87 is: 3,780.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,444.51 : 12,664.81 = 2,520.87 : x
  2. Step 2: Convert to fraction form
    8,444.51/12,664.81 = 2,520.87/x
  3. Step 3: Cross multiply
    8,444.51x = 12,664.81 × 2,520.87
  4. Step 4: Simplify right side
    8,444.51x = 31,926,339.58
  5. Step 5: Solve for x
    x = 31,926,339.58/8,444.51
  6. Step 6: Final answer
    x = 3,780.72

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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.