Home / 14,285.18-21,435.87-7,711.22

Finding the Fourth Proportional to 14,285.18, 21,435.87 and 7,711.22

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Solution

The fourth proportional to 14,285.18, 21,435.87 and 7,711.22 is: 11,571.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285.18 : 21,435.87 = 7,711.22 : x
  2. Step 2: Convert to fraction form
    14,285.18/21,435.87 = 7,711.22/x
  3. Step 3: Cross multiply
    14,285.18x = 21,435.87 × 7,711.22
  4. Step 4: Simplify right side
    14,285.18x = 165,296,791.97
  5. Step 5: Solve for x
    x = 165,296,791.97/14,285.18
  6. Step 6: Final answer
    x = 11,571.21

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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.