Home / 8,863.36-12,222.40-6,209.92

Finding the Fourth Proportional to 8,863.36, 12,222.40 and 6,209.92

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Solution

The fourth proportional to 8,863.36, 12,222.40 and 6,209.92 is: 8,563.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.36 : 12,222.40 = 6,209.92 : x
  2. Step 2: Convert to fraction form
    8,863.36/12,222.40 = 6,209.92/x
  3. Step 3: Cross multiply
    8,863.36x = 12,222.40 × 6,209.92
  4. Step 4: Simplify right side
    8,863.36x = 75,900,126.21
  5. Step 5: Solve for x
    x = 75,900,126.21/8,863.36
  6. Step 6: Final answer
    x = 8,563.36

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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.