Home / 8,630.49-12,942.17-2,705.40

Finding the Fourth Proportional to 8,630.49, 12,942.17 and 2,705.40

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Solution

The fourth proportional to 8,630.49, 12,942.17 and 2,705.40 is: 4,056.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.49 : 12,942.17 = 2,705.40 : x
  2. Step 2: Convert to fraction form
    8,630.49/12,942.17 = 2,705.40/x
  3. Step 3: Cross multiply
    8,630.49x = 12,942.17 × 2,705.40
  4. Step 4: Simplify right side
    8,630.49x = 35,013,682.01
  5. Step 5: Solve for x
    x = 35,013,682.01/8,630.49
  6. Step 6: Final answer
    x = 4,056.97

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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.