Home / 14,143.76-21,216.18-3,755.60

Finding the Fourth Proportional to 14,143.76, 21,216.18 and 3,755.60

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Solution

The fourth proportional to 14,143.76, 21,216.18 and 3,755.60 is: 5,633.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.76 : 21,216.18 = 3,755.60 : x
  2. Step 2: Convert to fraction form
    14,143.76/21,216.18 = 3,755.60/x
  3. Step 3: Cross multiply
    14,143.76x = 21,216.18 × 3,755.60
  4. Step 4: Simplify right side
    14,143.76x = 79,679,485.61
  5. Step 5: Solve for x
    x = 79,679,485.61/14,143.76
  6. Step 6: Final answer
    x = 5,633.54

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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.