Home / 8,631.52-11,911.46-4,905.52

Finding the Fourth Proportional to 8,631.52, 11,911.46 and 4,905.52

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Solution

The fourth proportional to 8,631.52, 11,911.46 and 4,905.52 is: 6,769.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.52 : 11,911.46 = 4,905.52 : x
  2. Step 2: Convert to fraction form
    8,631.52/11,911.46 = 4,905.52/x
  3. Step 3: Cross multiply
    8,631.52x = 11,911.46 × 4,905.52
  4. Step 4: Simplify right side
    8,631.52x = 58,431,905.26
  5. Step 5: Solve for x
    x = 58,431,905.26/8,631.52
  6. Step 6: Final answer
    x = 6,769.60

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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.