Home / 8,612.35-11,889.99-5,784.76

Finding the Fourth Proportional to 8,612.35, 11,889.99 and 5,784.76

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Solution

The fourth proportional to 8,612.35, 11,889.99 and 5,784.76 is: 7,986.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.35 : 11,889.99 = 5,784.76 : x
  2. Step 2: Convert to fraction form
    8,612.35/11,889.99 = 5,784.76/x
  3. Step 3: Cross multiply
    8,612.35x = 11,889.99 × 5,784.76
  4. Step 4: Simplify right side
    8,612.35x = 68,780,738.55
  5. Step 5: Solve for x
    x = 68,780,738.55/8,612.35
  6. Step 6: Final answer
    x = 7,986.29

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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.