Home / 18,285.93-25,234.51-9,902.43

Finding the Fourth Proportional to 18,285.93, 25,234.51 and 9,902.43

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Solution

The fourth proportional to 18,285.93, 25,234.51 and 9,902.43 is: 13,665.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.93 : 25,234.51 = 9,902.43 : x
  2. Step 2: Convert to fraction form
    18,285.93/25,234.51 = 9,902.43/x
  3. Step 3: Cross multiply
    18,285.93x = 25,234.51 × 9,902.43
  4. Step 4: Simplify right side
    18,285.93x = 249,882,968.86
  5. Step 5: Solve for x
    x = 249,882,968.86/18,285.93
  6. Step 6: Final answer
    x = 13,665.31

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Half scale
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Double scale
Find fourth proportional to 18,286.93, 25,235.89 and 9,903.43
Similar ratio
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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.