Home / 7,939.07-10,956.18-5,149.43

Finding the Fourth Proportional to 7,939.07, 10,956.18 and 5,149.43

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Solution

The fourth proportional to 7,939.07, 10,956.18 and 5,149.43 is: 7,106.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.07 : 10,956.18 = 5,149.43 : x
  2. Step 2: Convert to fraction form
    7,939.07/10,956.18 = 5,149.43/x
  3. Step 3: Cross multiply
    7,939.07x = 10,956.18 × 5,149.43
  4. Step 4: Simplify right side
    7,939.07x = 56,418,001.45
  5. Step 5: Solve for x
    x = 56,418,001.45/7,939.07
  6. Step 6: Final answer
    x = 7,106.38

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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.