Home / 11,433.90-15,778.89-6,654.09

Finding the Fourth Proportional to 11,433.90, 15,778.89 and 6,654.09

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Solution

The fourth proportional to 11,433.90, 15,778.89 and 6,654.09 is: 9,182.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,433.90 : 15,778.89 = 6,654.09 : x
  2. Step 2: Convert to fraction form
    11,433.90/15,778.89 = 6,654.09/x
  3. Step 3: Cross multiply
    11,433.90x = 15,778.89 × 6,654.09
  4. Step 4: Simplify right side
    11,433.90x = 104,994,154.16
  5. Step 5: Solve for x
    x = 104,994,154.16/11,433.90
  6. Step 6: Final answer
    x = 9,182.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.