Home / 18,466.21-27,696.88-5,140.09

Finding the Fourth Proportional to 18,466.21, 27,696.88 and 5,140.09

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Solution

The fourth proportional to 18,466.21, 27,696.88 and 5,140.09 is: 7,709.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,466.21 : 27,696.88 = 5,140.09 : x
  2. Step 2: Convert to fraction form
    18,466.21/27,696.88 = 5,140.09/x
  3. Step 3: Cross multiply
    18,466.21x = 27,696.88 × 5,140.09
  4. Step 4: Simplify right side
    18,466.21x = 142,364,455.92
  5. Step 5: Solve for x
    x = 142,364,455.92/18,466.21
  6. Step 6: Final answer
    x = 7,709.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.