Home / 19,818.36-29,708.91-6,661.53

Finding the Fourth Proportional to 19,818.36, 29,708.91 and 6,661.53

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Solution

The fourth proportional to 19,818.36, 29,708.91 and 6,661.53 is: 9,986.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.36 : 29,708.91 = 6,661.53 : x
  2. Step 2: Convert to fraction form
    19,818.36/29,708.91 = 6,661.53/x
  3. Step 3: Cross multiply
    19,818.36x = 29,708.91 × 6,661.53
  4. Step 4: Simplify right side
    19,818.36x = 197,906,795.23
  5. Step 5: Solve for x
    x = 197,906,795.23/19,818.36
  6. Step 6: Final answer
    x = 9,986.03

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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.