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Finding the Fourth Proportional to 8,144.42, 11,247.48 and 7,019.06

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Solution

The fourth proportional to 8,144.42, 11,247.48 and 7,019.06 is: 9,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,144.42 : 11,247.48 = 7,019.06 : x
  2. Step 2: Convert to fraction form
    8,144.42/11,247.48 = 7,019.06/x
  3. Step 3: Cross multiply
    8,144.42x = 11,247.48 × 7,019.06
  4. Step 4: Simplify right side
    8,144.42x = 78,946,680.73
  5. Step 5: Solve for x
    x = 78,946,680.73/8,144.42
  6. Step 6: Final answer
    x = 9,693.35

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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.