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Finding the Fourth Proportional to 8,203.55, 11,319.98 and 4,618.67

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Solution

The fourth proportional to 8,203.55, 11,319.98 and 4,618.67 is: 6,373.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,203.55 : 11,319.98 = 4,618.67 : x
  2. Step 2: Convert to fraction form
    8,203.55/11,319.98 = 4,618.67/x
  3. Step 3: Cross multiply
    8,203.55x = 11,319.98 × 4,618.67
  4. Step 4: Simplify right side
    8,203.55x = 52,283,172.33
  5. Step 5: Solve for x
    x = 52,283,172.33/8,203.55
  6. Step 6: Final answer
    x = 6,373.24

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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.