Home / 18,285.54-25,234.11-9,902.04

Finding the Fourth Proportional to 18,285.54, 25,234.11 and 9,902.04

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Solution

The fourth proportional to 18,285.54, 25,234.11 and 9,902.04 is: 13,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.54 : 25,234.11 = 9,902.04 : x
  2. Step 2: Convert to fraction form
    18,285.54/25,234.11 = 9,902.04/x
  3. Step 3: Cross multiply
    18,285.54x = 25,234.11 × 9,902.04
  4. Step 4: Simplify right side
    18,285.54x = 249,869,166.58
  5. Step 5: Solve for x
    x = 249,869,166.58/18,285.54
  6. Step 6: Final answer
    x = 13,664.85

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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.