Home / 9,021.78-12,450.03-5,042.91

Finding the Fourth Proportional to 9,021.78, 12,450.03 and 5,042.91

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Solution

The fourth proportional to 9,021.78, 12,450.03 and 5,042.91 is: 6,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021.78 : 12,450.03 = 5,042.91 : x
  2. Step 2: Convert to fraction form
    9,021.78/12,450.03 = 5,042.91/x
  3. Step 3: Cross multiply
    9,021.78x = 12,450.03 × 5,042.91
  4. Step 4: Simplify right side
    9,021.78x = 62,784,380.79
  5. Step 5: Solve for x
    x = 62,784,380.79/9,021.78
  6. Step 6: Final answer
    x = 6,959.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.