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Finding the Fourth Proportional to 9,343.16, 12,893.07 and 5,309.45

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Solution

The fourth proportional to 9,343.16, 12,893.07 and 5,309.45 is: 7,326.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,343.16 : 12,893.07 = 5,309.45 : x
  2. Step 2: Convert to fraction form
    9,343.16/12,893.07 = 5,309.45/x
  3. Step 3: Cross multiply
    9,343.16x = 12,893.07 × 5,309.45
  4. Step 4: Simplify right side
    9,343.16x = 68,455,046.05
  5. Step 5: Solve for x
    x = 68,455,046.05/9,343.16
  6. Step 6: Final answer
    x = 7,326.76

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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.