Home / 18,237.44-27,368.48-7,142.75

Finding the Fourth Proportional to 18,237.44, 27,368.48 and 7,142.75

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Solution

The fourth proportional to 18,237.44, 27,368.48 and 7,142.75 is: 10,718.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237.44 : 27,368.48 = 7,142.75 : x
  2. Step 2: Convert to fraction form
    18,237.44/27,368.48 = 7,142.75/x
  3. Step 3: Cross multiply
    18,237.44x = 27,368.48 × 7,142.75
  4. Step 4: Simplify right side
    18,237.44x = 195,486,037.96
  5. Step 5: Solve for x
    x = 195,486,037.96/18,237.44
  6. Step 6: Final answer
    x = 10,718.94

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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.