Home / 8,289.12-11,439.12-4,563.12

Finding the Fourth Proportional to 8,289.12, 11,439.12 and 4,563.12

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Solution

The fourth proportional to 8,289.12, 11,439.12 and 4,563.12 is: 6,297.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.12 : 11,439.12 = 4,563.12 : x
  2. Step 2: Convert to fraction form
    8,289.12/11,439.12 = 4,563.12/x
  3. Step 3: Cross multiply
    8,289.12x = 11,439.12 × 4,563.12
  4. Step 4: Simplify right side
    8,289.12x = 52,198,077.25
  5. Step 5: Solve for x
    x = 52,198,077.25/8,289.12
  6. Step 6: Final answer
    x = 6,297.18

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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.