Home / 15,679.06-21,633.24-9,305.35

Finding the Fourth Proportional to 15,679.06, 21,633.24 and 9,305.35

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Solution

The fourth proportional to 15,679.06, 21,633.24 and 9,305.35 is: 12,839.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,679.06 : 21,633.24 = 9,305.35 : x
  2. Step 2: Convert to fraction form
    15,679.06/21,633.24 = 9,305.35/x
  3. Step 3: Cross multiply
    15,679.06x = 21,633.24 × 9,305.35
  4. Step 4: Simplify right side
    15,679.06x = 201,304,869.83
  5. Step 5: Solve for x
    x = 201,304,869.83/15,679.06
  6. Step 6: Final answer
    x = 12,839.09

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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.