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Finding the Fourth Proportional to 12,485.73, 17,204.36 and 8,499.93

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Solution

The fourth proportional to 12,485.73, 17,204.36 and 8,499.93 is: 11,712.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.73 : 17,204.36 = 8,499.93 : x
  2. Step 2: Convert to fraction form
    12,485.73/17,204.36 = 8,499.93/x
  3. Step 3: Cross multiply
    12,485.73x = 17,204.36 × 8,499.93
  4. Step 4: Simplify right side
    12,485.73x = 146,235,813.20
  5. Step 5: Solve for x
    x = 146,235,813.20/12,485.73
  6. Step 6: Final answer
    x = 11,712.24

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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.