Home / 6,279.12-9,420.39-5,106.22

Finding the Fourth Proportional to 6,279.12, 9,420.39 and 5,106.22

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Solution

The fourth proportional to 6,279.12, 9,420.39 and 5,106.22 is: 7,660.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.12 : 9,420.39 = 5,106.22 : x
  2. Step 2: Convert to fraction form
    6,279.12/9,420.39 = 5,106.22/x
  3. Step 3: Cross multiply
    6,279.12x = 9,420.39 × 5,106.22
  4. Step 4: Simplify right side
    6,279.12x = 48,102,560.27
  5. Step 5: Solve for x
    x = 48,102,560.27/6,279.12
  6. Step 6: Final answer
    x = 7,660.72

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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.