Home / 14,191.55-19,578.79-8,222.07

Finding the Fourth Proportional to 14,191.55, 19,578.79 and 8,222.07

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Solution

The fourth proportional to 14,191.55, 19,578.79 and 8,222.07 is: 11,343.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,191.55 : 19,578.79 = 8,222.07 : x
  2. Step 2: Convert to fraction form
    14,191.55/19,578.79 = 8,222.07/x
  3. Step 3: Cross multiply
    14,191.55x = 19,578.79 × 8,222.07
  4. Step 4: Simplify right side
    14,191.55x = 160,978,181.90
  5. Step 5: Solve for x
    x = 160,978,181.90/14,191.55
  6. Step 6: Final answer
    x = 11,343.24

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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.