Home / 13,252.70-19,830.30-7,990.94

Finding the Fourth Proportional to 13,252.70, 19,830.30 and 7,990.94

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Solution

The fourth proportional to 13,252.70, 19,830.30 and 7,990.94 is: 11,957.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252.70 : 19,830.30 = 7,990.94 : x
  2. Step 2: Convert to fraction form
    13,252.70/19,830.30 = 7,990.94/x
  3. Step 3: Cross multiply
    13,252.70x = 19,830.30 × 7,990.94
  4. Step 4: Simplify right side
    13,252.70x = 158,462,737.48
  5. Step 5: Solve for x
    x = 158,462,737.48/13,252.70
  6. Step 6: Final answer
    x = 11,957.02

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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.