Home / 8,491.10-12,732.12-2,943.02

Finding the Fourth Proportional to 8,491.10, 12,732.12 and 2,943.02

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Solution

The fourth proportional to 8,491.10, 12,732.12 and 2,943.02 is: 4,412.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.10 : 12,732.12 = 2,943.02 : x
  2. Step 2: Convert to fraction form
    8,491.10/12,732.12 = 2,943.02/x
  3. Step 3: Cross multiply
    8,491.10x = 12,732.12 × 2,943.02
  4. Step 4: Simplify right side
    8,491.10x = 37,470,883.80
  5. Step 5: Solve for x
    x = 37,470,883.80/8,491.10
  6. Step 6: Final answer
    x = 4,412.96

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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.