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Finding the Fourth Proportional to 12,504.57, 18,723.43 and 6,648.67

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Solution

The fourth proportional to 12,504.57, 18,723.43 and 6,648.67 is: 9,955.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504.57 : 18,723.43 = 6,648.67 : x
  2. Step 2: Convert to fraction form
    12,504.57/18,723.43 = 6,648.67/x
  3. Step 3: Cross multiply
    12,504.57x = 18,723.43 × 6,648.67
  4. Step 4: Simplify right side
    12,504.57x = 124,485,907.34
  5. Step 5: Solve for x
    x = 124,485,907.34/12,504.57
  6. Step 6: Final answer
    x = 9,955.23

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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.