Home / 9,418.63-12,997.45-5,169.69

Finding the Fourth Proportional to 9,418.63, 12,997.45 and 5,169.69

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Solution

The fourth proportional to 9,418.63, 12,997.45 and 5,169.69 is: 7,134.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.63 : 12,997.45 = 5,169.69 : x
  2. Step 2: Convert to fraction form
    9,418.63/12,997.45 = 5,169.69/x
  3. Step 3: Cross multiply
    9,418.63x = 12,997.45 × 5,169.69
  4. Step 4: Simplify right side
    9,418.63x = 67,192,787.29
  5. Step 5: Solve for x
    x = 67,192,787.29/9,418.63
  6. Step 6: Final answer
    x = 7,134.03

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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.