Home / 7,390.92-11,079.06-6,078.72

Finding the Fourth Proportional to 7,390.92, 11,079.06 and 6,078.72

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Solution

The fourth proportional to 7,390.92, 11,079.06 and 6,078.72 is: 9,112.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.92 : 11,079.06 = 6,078.72 : x
  2. Step 2: Convert to fraction form
    7,390.92/11,079.06 = 6,078.72/x
  3. Step 3: Cross multiply
    7,390.92x = 11,079.06 × 6,078.72
  4. Step 4: Simplify right side
    7,390.92x = 67,346,503.60
  5. Step 5: Solve for x
    x = 67,346,503.60/7,390.92
  6. Step 6: Final answer
    x = 9,112.06

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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.