Home / 13,986.72-20,950.56-10,855.44

Finding the Fourth Proportional to 13,986.72, 20,950.56 and 10,855.44

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Solution

The fourth proportional to 13,986.72, 20,950.56 and 10,855.44 is: 16,260.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.72 : 20,950.56 = 10,855.44 : x
  2. Step 2: Convert to fraction form
    13,986.72/20,950.56 = 10,855.44/x
  3. Step 3: Cross multiply
    13,986.72x = 20,950.56 × 10,855.44
  4. Step 4: Simplify right side
    13,986.72x = 227,427,547.05
  5. Step 5: Solve for x
    x = 227,427,547.05/13,986.72
  6. Step 6: Final answer
    x = 16,260.25

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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.