Home / 12,654.74-18,993.69-6,419.07

Finding the Fourth Proportional to 12,654.74, 18,993.69 and 6,419.07

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Solution

The fourth proportional to 12,654.74, 18,993.69 and 6,419.07 is: 9,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,654.74 : 18,993.69 = 6,419.07 : x
  2. Step 2: Convert to fraction form
    12,654.74/18,993.69 = 6,419.07/x
  3. Step 3: Cross multiply
    12,654.74x = 18,993.69 × 6,419.07
  4. Step 4: Simplify right side
    12,654.74x = 121,921,825.67
  5. Step 5: Solve for x
    x = 121,921,825.67/12,654.74
  6. Step 6: Final answer
    x = 9,634.48

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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.