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Finding the Fourth Proportional to 12,485.63, 17,226.36 and 7,517.63

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Solution

The fourth proportional to 12,485.63, 17,226.36 and 7,517.63 is: 10,372.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.63 : 17,226.36 = 7,517.63 : x
  2. Step 2: Convert to fraction form
    12,485.63/17,226.36 = 7,517.63/x
  3. Step 3: Cross multiply
    12,485.63x = 17,226.36 × 7,517.63
  4. Step 4: Simplify right side
    12,485.63x = 129,501,443.79
  5. Step 5: Solve for x
    x = 129,501,443.79/12,485.63
  6. Step 6: Final answer
    x = 10,372.04

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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.