Home / 8,318.48-11,478.83-4,781.03

Finding the Fourth Proportional to 8,318.48, 11,478.83 and 4,781.03

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Solution

The fourth proportional to 8,318.48, 11,478.83 and 4,781.03 is: 6,597.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.48 : 11,478.83 = 4,781.03 : x
  2. Step 2: Convert to fraction form
    8,318.48/11,478.83 = 4,781.03/x
  3. Step 3: Cross multiply
    8,318.48x = 11,478.83 × 4,781.03
  4. Step 4: Simplify right side
    8,318.48x = 54,880,549.30
  5. Step 5: Solve for x
    x = 54,880,549.30/8,318.48
  6. Step 6: Final answer
    x = 6,597.43

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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.