Home / 17,376.39-23,979.47-9,418.65

Finding the Fourth Proportional to 17,376.39, 23,979.47 and 9,418.65

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Solution

The fourth proportional to 17,376.39, 23,979.47 and 9,418.65 is: 12,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,376.39 : 23,979.47 = 9,418.65 : x
  2. Step 2: Convert to fraction form
    17,376.39/23,979.47 = 9,418.65/x
  3. Step 3: Cross multiply
    17,376.39x = 23,979.47 × 9,418.65
  4. Step 4: Simplify right side
    17,376.39x = 225,854,186.94
  5. Step 5: Solve for x
    x = 225,854,186.94/17,376.39
  6. Step 6: Final answer
    x = 12,997.76

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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.