Home / 14,118.84-21,180.21-4,761.53

Finding the Fourth Proportional to 14,118.84, 21,180.21 and 4,761.53

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Solution

The fourth proportional to 14,118.84, 21,180.21 and 4,761.53 is: 7,142.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.84 : 21,180.21 = 4,761.53 : x
  2. Step 2: Convert to fraction form
    14,118.84/21,180.21 = 4,761.53/x
  3. Step 3: Cross multiply
    14,118.84x = 21,180.21 × 4,761.53
  4. Step 4: Simplify right side
    14,118.84x = 100,850,293.52
  5. Step 5: Solve for x
    x = 100,850,293.52/14,118.84
  6. Step 6: Final answer
    x = 7,142.96

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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.