Home / 13,964.94-19,279.08-8,664.30

Finding the Fourth Proportional to 13,964.94, 19,279.08 and 8,664.30

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Solution

The fourth proportional to 13,964.94, 19,279.08 and 8,664.30 is: 11,961.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,964.94 : 19,279.08 = 8,664.30 : x
  2. Step 2: Convert to fraction form
    13,964.94/19,279.08 = 8,664.30/x
  3. Step 3: Cross multiply
    13,964.94x = 19,279.08 × 8,664.30
  4. Step 4: Simplify right side
    13,964.94x = 167,039,732.84
  5. Step 5: Solve for x
    x = 167,039,732.84/13,964.94
  6. Step 6: Final answer
    x = 11,961.36

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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.