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Finding the Fourth Proportional to 8,008.42, 11,062.29 and 6,442.42

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Solution

The fourth proportional to 8,008.42, 11,062.29 and 6,442.42 is: 8,899.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,008.42 : 11,062.29 = 6,442.42 : x
  2. Step 2: Convert to fraction form
    8,008.42/11,062.29 = 6,442.42/x
  3. Step 3: Cross multiply
    8,008.42x = 11,062.29 × 6,442.42
  4. Step 4: Simplify right side
    8,008.42x = 71,267,918.34
  5. Step 5: Solve for x
    x = 71,267,918.34/8,008.42
  6. Step 6: Final answer
    x = 8,899.12

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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.