Home / 18,285.55-25,234.05-9,902.05

Finding the Fourth Proportional to 18,285.55, 25,234.05 and 9,902.05

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Solution

The fourth proportional to 18,285.55, 25,234.05 and 9,902.05 is: 13,664.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.55 : 25,234.05 = 9,902.05 : x
  2. Step 2: Convert to fraction form
    18,285.55/25,234.05 = 9,902.05/x
  3. Step 3: Cross multiply
    18,285.55x = 25,234.05 × 9,902.05
  4. Step 4: Simplify right side
    18,285.55x = 249,868,743.15
  5. Step 5: Solve for x
    x = 249,868,743.15/18,285.55
  6. Step 6: Final answer
    x = 13,664.82

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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.