Home / 15,427.24-21,273.68-13,196.50

Finding the Fourth Proportional to 15,427.24, 21,273.68 and 13,196.50

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Solution

The fourth proportional to 15,427.24, 21,273.68 and 13,196.50 is: 18,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,427.24 : 21,273.68 = 13,196.50 : x
  2. Step 2: Convert to fraction form
    15,427.24/21,273.68 = 13,196.50/x
  3. Step 3: Cross multiply
    15,427.24x = 21,273.68 × 13,196.50
  4. Step 4: Simplify right side
    15,427.24x = 280,738,118.12
  5. Step 5: Solve for x
    x = 280,738,118.12/15,427.24
  6. Step 6: Final answer
    x = 18,197.56

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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.