Home / 8,120.40-11,206.14-4,394.40

Finding the Fourth Proportional to 8,120.40, 11,206.14 and 4,394.40

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Solution

The fourth proportional to 8,120.40, 11,206.14 and 4,394.40 is: 6,064.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.40 : 11,206.14 = 4,394.40 : x
  2. Step 2: Convert to fraction form
    8,120.40/11,206.14 = 4,394.40/x
  3. Step 3: Cross multiply
    8,120.40x = 11,206.14 × 4,394.40
  4. Step 4: Simplify right side
    8,120.40x = 49,244,261.62
  5. Step 5: Solve for x
    x = 49,244,261.62/8,120.40
  6. Step 6: Final answer
    x = 6,064.27

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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.