Home / 13,964.28-19,264.68-7,991.34

Finding the Fourth Proportional to 13,964.28, 19,264.68 and 7,991.34

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Solution

The fourth proportional to 13,964.28, 19,264.68 and 7,991.34 is: 11,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,964.28 : 19,264.68 = 7,991.34 : x
  2. Step 2: Convert to fraction form
    13,964.28/19,264.68 = 7,991.34/x
  3. Step 3: Cross multiply
    13,964.28x = 19,264.68 × 7,991.34
  4. Step 4: Simplify right side
    13,964.28x = 153,950,607.87
  5. Step 5: Solve for x
    x = 153,950,607.87/13,964.28
  6. Step 6: Final answer
    x = 11,024.60

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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.