Home / 19,974.28-29,961.54-8,878.36

Finding the Fourth Proportional to 19,974.28, 29,961.54 and 8,878.36

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Solution

The fourth proportional to 19,974.28, 29,961.54 and 8,878.36 is: 13,317.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,974.28 : 29,961.54 = 8,878.36 : x
  2. Step 2: Convert to fraction form
    19,974.28/29,961.54 = 8,878.36/x
  3. Step 3: Cross multiply
    19,974.28x = 29,961.54 × 8,878.36
  4. Step 4: Simplify right side
    19,974.28x = 266,009,338.27
  5. Step 5: Solve for x
    x = 266,009,338.27/19,974.28
  6. Step 6: Final answer
    x = 13,317.59

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1.5x scale

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.