Home / 19,811.38-29,717.07-6,663.76

Finding the Fourth Proportional to 19,811.38, 29,717.07 and 6,663.76

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Solution

The fourth proportional to 19,811.38, 29,717.07 and 6,663.76 is: 9,995.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.38 : 29,717.07 = 6,663.76 : x
  2. Step 2: Convert to fraction form
    19,811.38/29,717.07 = 6,663.76/x
  3. Step 3: Cross multiply
    19,811.38x = 29,717.07 × 6,663.76
  4. Step 4: Simplify right side
    19,811.38x = 198,027,422.38
  5. Step 5: Solve for x
    x = 198,027,422.38/19,811.38
  6. Step 6: Final answer
    x = 9,995.64

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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.