Home / 19,768.90-29,656.86-6,622.60

Finding the Fourth Proportional to 19,768.90, 29,656.86 and 6,622.60

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Solution

The fourth proportional to 19,768.90, 29,656.86 and 6,622.60 is: 9,935.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.90 : 29,656.86 = 6,622.60 : x
  2. Step 2: Convert to fraction form
    19,768.90/29,656.86 = 6,622.60/x
  3. Step 3: Cross multiply
    19,768.90x = 29,656.86 × 6,622.60
  4. Step 4: Simplify right side
    19,768.90x = 196,405,521.04
  5. Step 5: Solve for x
    x = 196,405,521.04/19,768.90
  6. Step 6: Final answer
    x = 9,935.08

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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.