Home / 13,331.85-19,990.94-7,796.01

Finding the Fourth Proportional to 13,331.85, 19,990.94 and 7,796.01

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Solution

The fourth proportional to 13,331.85, 19,990.94 and 7,796.01 is: 11,690.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.85 : 19,990.94 = 7,796.01 : x
  2. Step 2: Convert to fraction form
    13,331.85/19,990.94 = 7,796.01/x
  3. Step 3: Cross multiply
    13,331.85x = 19,990.94 × 7,796.01
  4. Step 4: Simplify right side
    13,331.85x = 155,849,529.17
  5. Step 5: Solve for x
    x = 155,849,529.17/13,331.85
  6. Step 6: Final answer
    x = 11,690.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.