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Finding the Fourth Proportional to 8,487.91, 12,730.51 and 2,941.03

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Solution

The fourth proportional to 8,487.91, 12,730.51 and 2,941.03 is: 4,411.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.91 : 12,730.51 = 2,941.03 : x
  2. Step 2: Convert to fraction form
    8,487.91/12,730.51 = 2,941.03/x
  3. Step 3: Cross multiply
    8,487.91x = 12,730.51 × 2,941.03
  4. Step 4: Simplify right side
    8,487.91x = 37,440,811.83
  5. Step 5: Solve for x
    x = 37,440,811.83/8,487.91
  6. Step 6: Final answer
    x = 4,411.08

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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.