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Finding the Fourth Proportional to 18,285.30, 25,230.60 and 10,326.60

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Solution

The fourth proportional to 18,285.30, 25,230.60 and 10,326.60 is: 14,248.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.30 : 25,230.60 = 10,326.60 : x
  2. Step 2: Convert to fraction form
    18,285.30/25,230.60 = 10,326.60/x
  3. Step 3: Cross multiply
    18,285.30x = 25,230.60 × 10,326.60
  4. Step 4: Simplify right side
    18,285.30x = 260,546,313.96
  5. Step 5: Solve for x
    x = 260,546,313.96/18,285.30
  6. Step 6: Final answer
    x = 14,248.95

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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.