Home / 19,786.68-29,678.76-4,995.54

Finding the Fourth Proportional to 19,786.68, 29,678.76 and 4,995.54

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Solution

The fourth proportional to 19,786.68, 29,678.76 and 4,995.54 is: 7,492.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.68 : 29,678.76 = 4,995.54 : x
  2. Step 2: Convert to fraction form
    19,786.68/29,678.76 = 4,995.54/x
  3. Step 3: Cross multiply
    19,786.68x = 29,678.76 × 4,995.54
  4. Step 4: Simplify right side
    19,786.68x = 148,261,432.73
  5. Step 5: Solve for x
    x = 148,261,432.73/19,786.68
  6. Step 6: Final answer
    x = 7,492.99

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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.