Home / 18,185.32-27,277.78-4,858.30

Finding the Fourth Proportional to 18,185.32, 27,277.78 and 4,858.30

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Solution

The fourth proportional to 18,185.32, 27,277.78 and 4,858.30 is: 7,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.32 : 27,277.78 = 4,858.30 : x
  2. Step 2: Convert to fraction form
    18,185.32/27,277.78 = 4,858.30/x
  3. Step 3: Cross multiply
    18,185.32x = 27,277.78 × 4,858.30
  4. Step 4: Simplify right side
    18,185.32x = 132,523,638.57
  5. Step 5: Solve for x
    x = 132,523,638.57/18,185.32
  6. Step 6: Final answer
    x = 7,287.40

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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.