Home / 13,964.90-19,271.79-7,997.09

Finding the Fourth Proportional to 13,964.90, 19,271.79 and 7,997.09

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Solution

The fourth proportional to 13,964.90, 19,271.79 and 7,997.09 is: 11,036.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,964.90 : 19,271.79 = 7,997.09 : x
  2. Step 2: Convert to fraction form
    13,964.90/19,271.79 = 7,997.09/x
  3. Step 3: Cross multiply
    13,964.90x = 19,271.79 × 7,997.09
  4. Step 4: Simplify right side
    13,964.90x = 154,118,142.73
  5. Step 5: Solve for x
    x = 154,118,142.73/13,964.90
  6. Step 6: Final answer
    x = 11,036.11

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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.