Home / 7,126.91-10,678.10-5,043.49

Finding the Fourth Proportional to 7,126.91, 10,678.10 and 5,043.49

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Solution

The fourth proportional to 7,126.91, 10,678.10 and 5,043.49 is: 7,556.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.91 : 10,678.10 = 5,043.49 : x
  2. Step 2: Convert to fraction form
    7,126.91/10,678.10 = 5,043.49/x
  3. Step 3: Cross multiply
    7,126.91x = 10,678.10 × 5,043.49
  4. Step 4: Simplify right side
    7,126.91x = 53,854,838.66
  5. Step 5: Solve for x
    x = 53,854,838.66/7,126.91
  6. Step 6: Final answer
    x = 7,556.55

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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.