Home / 9,169.82-12,654.36-4,978.08

Finding the Fourth Proportional to 9,169.82, 12,654.36 and 4,978.08

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Solution

The fourth proportional to 9,169.82, 12,654.36 and 4,978.08 is: 6,869.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,169.82 : 12,654.36 = 4,978.08 : x
  2. Step 2: Convert to fraction form
    9,169.82/12,654.36 = 4,978.08/x
  3. Step 3: Cross multiply
    9,169.82x = 12,654.36 × 4,978.08
  4. Step 4: Simplify right side
    9,169.82x = 62,994,416.43
  5. Step 5: Solve for x
    x = 62,994,416.43/9,169.82
  6. Step 6: Final answer
    x = 6,869.75

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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.