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Finding the Fourth Proportional to 17,778.56, 26,667.56 and 4,630.64

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Solution

The fourth proportional to 17,778.56, 26,667.56 and 4,630.64 is: 6,945.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,778.56 : 26,667.56 = 4,630.64 : x
  2. Step 2: Convert to fraction form
    17,778.56/26,667.56 = 4,630.64/x
  3. Step 3: Cross multiply
    17,778.56x = 26,667.56 × 4,630.64
  4. Step 4: Simplify right side
    17,778.56x = 123,487,870.04
  5. Step 5: Solve for x
    x = 123,487,870.04/17,778.56
  6. Step 6: Final answer
    x = 6,945.89

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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.