Home / 8,605.28-11,880.99-6,612.27

Finding the Fourth Proportional to 8,605.28, 11,880.99 and 6,612.27

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Solution

The fourth proportional to 8,605.28, 11,880.99 and 6,612.27 is: 9,129.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.28 : 11,880.99 = 6,612.27 : x
  2. Step 2: Convert to fraction form
    8,605.28/11,880.99 = 6,612.27/x
  3. Step 3: Cross multiply
    8,605.28x = 11,880.99 × 6,612.27
  4. Step 4: Simplify right side
    8,605.28x = 78,560,313.75
  5. Step 5: Solve for x
    x = 78,560,313.75/8,605.28
  6. Step 6: Final answer
    x = 9,129.32

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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.