Home / 14,651.81-21,976.10-4,122.17

Finding the Fourth Proportional to 14,651.81, 21,976.10 and 4,122.17

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Solution

The fourth proportional to 14,651.81, 21,976.10 and 4,122.17 is: 6,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.81 : 21,976.10 = 4,122.17 : x
  2. Step 2: Convert to fraction form
    14,651.81/21,976.10 = 4,122.17/x
  3. Step 3: Cross multiply
    14,651.81x = 21,976.10 × 4,122.17
  4. Step 4: Simplify right side
    14,651.81x = 90,589,220.14
  5. Step 5: Solve for x
    x = 90,589,220.14/14,651.81
  6. Step 6: Final answer
    x = 6,182.80

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1.5x scale

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.