Home / 14,220.21-21,321.18-5,905.98

Finding the Fourth Proportional to 14,220.21, 21,321.18 and 5,905.98

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Solution

The fourth proportional to 14,220.21, 21,321.18 and 5,905.98 is: 8,855.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.21 : 21,321.18 = 5,905.98 : x
  2. Step 2: Convert to fraction form
    14,220.21/21,321.18 = 5,905.98/x
  3. Step 3: Cross multiply
    14,220.21x = 21,321.18 × 5,905.98
  4. Step 4: Simplify right side
    14,220.21x = 125,922,462.66
  5. Step 5: Solve for x
    x = 125,922,462.66/14,220.21
  6. Step 6: Final answer
    x = 8,855.18

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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.