Home / 19,811.13-29,698.09-6,654.28

Finding the Fourth Proportional to 19,811.13, 29,698.09 and 6,654.28

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Solution

The fourth proportional to 19,811.13, 29,698.09 and 6,654.28 is: 9,975.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.13 : 29,698.09 = 6,654.28 : x
  2. Step 2: Convert to fraction form
    19,811.13/29,698.09 = 6,654.28/x
  3. Step 3: Cross multiply
    19,811.13x = 29,698.09 × 6,654.28
  4. Step 4: Simplify right side
    19,811.13x = 197,619,325.03
  5. Step 5: Solve for x
    x = 197,619,325.03/19,811.13
  6. Step 6: Final answer
    x = 9,975.17

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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.