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Finding the Fourth Proportional to 12,581.87, 17,332.94 and 8,797.95

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Solution

The fourth proportional to 12,581.87, 17,332.94 and 8,797.95 is: 12,120.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.87 : 17,332.94 = 8,797.95 : x
  2. Step 2: Convert to fraction form
    12,581.87/17,332.94 = 8,797.95/x
  3. Step 3: Cross multiply
    12,581.87x = 17,332.94 × 8,797.95
  4. Step 4: Simplify right side
    12,581.87x = 152,494,361.47
  5. Step 5: Solve for x
    x = 152,494,361.47/12,581.87
  6. Step 6: Final answer
    x = 12,120.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.