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Finding the Fourth Proportional to 8,670.16, 11,960.89 and 5,524.39

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Solution

The fourth proportional to 8,670.16, 11,960.89 and 5,524.39 is: 7,621.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.16 : 11,960.89 = 5,524.39 : x
  2. Step 2: Convert to fraction form
    8,670.16/11,960.89 = 5,524.39/x
  3. Step 3: Cross multiply
    8,670.16x = 11,960.89 × 5,524.39
  4. Step 4: Simplify right side
    8,670.16x = 66,076,621.11
  5. Step 5: Solve for x
    x = 66,076,621.11/8,670.16
  6. Step 6: Final answer
    x = 7,621.15

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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.