Home / 19,974.40-29,977.09-7,505.77

Finding the Fourth Proportional to 19,974.40, 29,977.09 and 7,505.77

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Solution

The fourth proportional to 19,974.40, 29,977.09 and 7,505.77 is: 11,264.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,974.40 : 29,977.09 = 7,505.77 : x
  2. Step 2: Convert to fraction form
    19,974.40/29,977.09 = 7,505.77/x
  3. Step 3: Cross multiply
    19,974.40x = 29,977.09 × 7,505.77
  4. Step 4: Simplify right side
    19,974.40x = 225,001,142.81
  5. Step 5: Solve for x
    x = 225,001,142.81/19,974.40
  6. Step 6: Final answer
    x = 11,264.48

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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.