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Finding the Fourth Proportional to 9,342.02, 12,892 and 5,150.28

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Solution

The fourth proportional to 9,342.02, 12,892 and 5,150.28 is: 7,107.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,342.02 : 12,892 = 5,150.28 : x
  2. Step 2: Convert to fraction form
    9,342.02/12,892 = 5,150.28/x
  3. Step 3: Cross multiply
    9,342.02x = 12,892 × 5,150.28
  4. Step 4: Simplify right side
    9,342.02x = 66,397,409.76
  5. Step 5: Solve for x
    x = 66,397,409.76/9,342.02
  6. Step 6: Final answer
    x = 7,107.39

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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.