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Finding the Fourth Proportional to 8,791.50, 13,190.49 and 4,631.34

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Solution

The fourth proportional to 8,791.50, 13,190.49 and 4,631.34 is: 6,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.50 : 13,190.49 = 4,631.34 : x
  2. Step 2: Convert to fraction form
    8,791.50/13,190.49 = 4,631.34/x
  3. Step 3: Cross multiply
    8,791.50x = 13,190.49 × 4,631.34
  4. Step 4: Simplify right side
    8,791.50x = 61,089,643.96
  5. Step 5: Solve for x
    x = 61,089,643.96/8,791.50
  6. Step 6: Final answer
    x = 6,948.72

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Double scale
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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.