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Finding the Fourth Proportional to 19,891.01, 29,828.69 and 7,237.76

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Solution

The fourth proportional to 19,891.01, 29,828.69 and 7,237.76 is: 10,853.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.01 : 29,828.69 = 7,237.76 : x
  2. Step 2: Convert to fraction form
    19,891.01/29,828.69 = 7,237.76/x
  3. Step 3: Cross multiply
    19,891.01x = 29,828.69 × 7,237.76
  4. Step 4: Simplify right side
    19,891.01x = 215,892,899.33
  5. Step 5: Solve for x
    x = 215,892,899.33/19,891.01
  6. Step 6: Final answer
    x = 10,853.79

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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.