Home / 8,386.40-11,553.23-5,863.79

Finding the Fourth Proportional to 8,386.40, 11,553.23 and 5,863.79

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Solution

The fourth proportional to 8,386.40, 11,553.23 and 5,863.79 is: 8,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.40 : 11,553.23 = 5,863.79 : x
  2. Step 2: Convert to fraction form
    8,386.40/11,553.23 = 5,863.79/x
  3. Step 3: Cross multiply
    8,386.40x = 11,553.23 × 5,863.79
  4. Step 4: Simplify right side
    8,386.40x = 67,745,758.08
  5. Step 5: Solve for x
    x = 67,745,758.08/8,386.40
  6. Step 6: Final answer
    x = 8,078.05

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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.