Home / 10,243.90-15,364.49-3,222.21

Finding the Fourth Proportional to 10,243.90, 15,364.49 and 3,222.21

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Solution

The fourth proportional to 10,243.90, 15,364.49 and 3,222.21 is: 4,832.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,243.90 : 15,364.49 = 3,222.21 : x
  2. Step 2: Convert to fraction form
    10,243.90/15,364.49 = 3,222.21/x
  3. Step 3: Cross multiply
    10,243.90x = 15,364.49 × 3,222.21
  4. Step 4: Simplify right side
    10,243.90x = 49,507,654.83
  5. Step 5: Solve for x
    x = 49,507,654.83/10,243.90
  6. Step 6: Final answer
    x = 4,832.89

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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.