Home / 14,141.20-21,218.10-7,220.56

Finding the Fourth Proportional to 14,141.20, 21,218.10 and 7,220.56

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Solution

The fourth proportional to 14,141.20, 21,218.10 and 7,220.56 is: 10,834.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,141.20 : 21,218.10 = 7,220.56 : x
  2. Step 2: Convert to fraction form
    14,141.20/21,218.10 = 7,220.56/x
  3. Step 3: Cross multiply
    14,141.20x = 21,218.10 × 7,220.56
  4. Step 4: Simplify right side
    14,141.20x = 153,206,564.14
  5. Step 5: Solve for x
    x = 153,206,564.14/14,141.20
  6. Step 6: Final answer
    x = 10,834.06

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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.