Home / 18,770.15-25,902.81-11,696.60

Finding the Fourth Proportional to 18,770.15, 25,902.81 and 11,696.60

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Solution

The fourth proportional to 18,770.15, 25,902.81 and 11,696.60 is: 16,141.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.15 : 25,902.81 = 11,696.60 : x
  2. Step 2: Convert to fraction form
    18,770.15/25,902.81 = 11,696.60/x
  3. Step 3: Cross multiply
    18,770.15x = 25,902.81 × 11,696.60
  4. Step 4: Simplify right side
    18,770.15x = 302,974,807.45
  5. Step 5: Solve for x
    x = 302,974,807.45/18,770.15
  6. Step 6: Final answer
    x = 16,141.31

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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.