Home / 19,972.40-29,974.09-7,503.77

Finding the Fourth Proportional to 19,972.40, 29,974.09 and 7,503.77

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Solution

The fourth proportional to 19,972.40, 29,974.09 and 7,503.77 is: 11,261.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.40 : 29,974.09 = 7,503.77 : x
  2. Step 2: Convert to fraction form
    19,972.40/29,974.09 = 7,503.77/x
  3. Step 3: Cross multiply
    19,972.40x = 29,974.09 × 7,503.77
  4. Step 4: Simplify right side
    19,972.40x = 224,918,527.45
  5. Step 5: Solve for x
    x = 224,918,527.45/19,972.40
  6. Step 6: Final answer
    x = 11,261.47

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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.