Home / 6,939.87-9,580.15-4,425.36

Finding the Fourth Proportional to 6,939.87, 9,580.15 and 4,425.36

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Solution

The fourth proportional to 6,939.87, 9,580.15 and 4,425.36 is: 6,108.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.87 : 9,580.15 = 4,425.36 : x
  2. Step 2: Convert to fraction form
    6,939.87/9,580.15 = 4,425.36/x
  3. Step 3: Cross multiply
    6,939.87x = 9,580.15 × 4,425.36
  4. Step 4: Simplify right side
    6,939.87x = 42,395,590.48
  5. Step 5: Solve for x
    x = 42,395,590.48/6,939.87
  6. Step 6: Final answer
    x = 6,108.99

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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.