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Finding the Fourth Proportional to 8,940.98, 13,491.88 and 8,632.10

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Solution

The fourth proportional to 8,940.98, 13,491.88 and 8,632.10 is: 13,025.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.98 : 13,491.88 = 8,632.10 : x
  2. Step 2: Convert to fraction form
    8,940.98/13,491.88 = 8,632.10/x
  3. Step 3: Cross multiply
    8,940.98x = 13,491.88 × 8,632.10
  4. Step 4: Simplify right side
    8,940.98x = 116,463,214.19
  5. Step 5: Solve for x
    x = 116,463,214.19/8,940.98
  6. Step 6: Final answer
    x = 13,025.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.