Home / 19,987.10-29,964.83-7,505.73

Finding the Fourth Proportional to 19,987.10, 29,964.83 and 7,505.73

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Solution

The fourth proportional to 19,987.10, 29,964.83 and 7,505.73 is: 11,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.10 : 29,964.83 = 7,505.73 : x
  2. Step 2: Convert to fraction form
    19,987.10/29,964.83 = 7,505.73/x
  3. Step 3: Cross multiply
    19,987.10x = 29,964.83 × 7,505.73
  4. Step 4: Simplify right side
    19,987.10x = 224,907,885.95
  5. Step 5: Solve for x
    x = 224,907,885.95/19,987.10
  6. Step 6: Final answer
    x = 11,252.65

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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.