Home / 12,867.63-17,757.33-6,979.63

Finding the Fourth Proportional to 12,867.63, 17,757.33 and 6,979.63

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Solution

The fourth proportional to 12,867.63, 17,757.33 and 6,979.63 is: 9,631.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.63 : 17,757.33 = 6,979.63 : x
  2. Step 2: Convert to fraction form
    12,867.63/17,757.33 = 6,979.63/x
  3. Step 3: Cross multiply
    12,867.63x = 17,757.33 × 6,979.63
  4. Step 4: Simplify right side
    12,867.63x = 123,939,593.19
  5. Step 5: Solve for x
    x = 123,939,593.19/12,867.63
  6. Step 6: Final answer
    x = 9,631.89

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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.