Home / 18,081.41-24,935.70-12,406.15

Finding the Fourth Proportional to 18,081.41, 24,935.70 and 12,406.15

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Solution

The fourth proportional to 18,081.41, 24,935.70 and 12,406.15 is: 17,109.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,081.41 : 24,935.70 = 12,406.15 : x
  2. Step 2: Convert to fraction form
    18,081.41/24,935.70 = 12,406.15/x
  3. Step 3: Cross multiply
    18,081.41x = 24,935.70 × 12,406.15
  4. Step 4: Simplify right side
    18,081.41x = 309,355,902.20
  5. Step 5: Solve for x
    x = 309,355,902.20/18,081.41
  6. Step 6: Final answer
    x = 17,109.06

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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.