Home / 13,065.10-19,622.85-11,195.21

Finding the Fourth Proportional to 13,065.10, 19,622.85 and 11,195.21

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Solution

The fourth proportional to 13,065.10, 19,622.85 and 11,195.21 is: 16,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065.10 : 19,622.85 = 11,195.21 : x
  2. Step 2: Convert to fraction form
    13,065.10/19,622.85 = 11,195.21/x
  3. Step 3: Cross multiply
    13,065.10x = 19,622.85 × 11,195.21
  4. Step 4: Simplify right side
    13,065.10x = 219,681,926.55
  5. Step 5: Solve for x
    x = 219,681,926.55/13,065.10
  6. Step 6: Final answer
    x = 16,814.41

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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.