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Finding the Fourth Proportional to 18,354.94, 25,329.81 and 10,902.94

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Solution

The fourth proportional to 18,354.94, 25,329.81 and 10,902.94 is: 15,046.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.94 : 25,329.81 = 10,902.94 : x
  2. Step 2: Convert to fraction form
    18,354.94/25,329.81 = 10,902.94/x
  3. Step 3: Cross multiply
    18,354.94x = 25,329.81 × 10,902.94
  4. Step 4: Simplify right side
    18,354.94x = 276,169,376.20
  5. Step 5: Solve for x
    x = 276,169,376.20/18,354.94
  6. Step 6: Final answer
    x = 15,046.05

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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.