Home / 12,383.38-17,079.51-8,606.47

Finding the Fourth Proportional to 12,383.38, 17,079.51 and 8,606.47

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Solution

The fourth proportional to 12,383.38, 17,079.51 and 8,606.47 is: 11,870.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.38 : 17,079.51 = 8,606.47 : x
  2. Step 2: Convert to fraction form
    12,383.38/17,079.51 = 8,606.47/x
  3. Step 3: Cross multiply
    12,383.38x = 17,079.51 × 8,606.47
  4. Step 4: Simplify right side
    12,383.38x = 146,994,290.43
  5. Step 5: Solve for x
    x = 146,994,290.43/12,383.38
  6. Step 6: Final answer
    x = 11,870.29

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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.