Home / 19,765.90-29,653.62-6,618.34

Finding the Fourth Proportional to 19,765.90, 29,653.62 and 6,618.34

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Solution

The fourth proportional to 19,765.90, 29,653.62 and 6,618.34 is: 9,929.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,765.90 : 29,653.62 = 6,618.34 : x
  2. Step 2: Convert to fraction form
    19,765.90/29,653.62 = 6,618.34/x
  3. Step 3: Cross multiply
    19,765.90x = 29,653.62 × 6,618.34
  4. Step 4: Simplify right side
    19,765.90x = 196,257,739.39
  5. Step 5: Solve for x
    x = 196,257,739.39/19,765.90
  6. Step 6: Final answer
    x = 9,929.11

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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.