Home / 14,070.43-19,505.99-13,321.39

Finding the Fourth Proportional to 14,070.43, 19,505.99 and 13,321.39

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Solution

The fourth proportional to 14,070.43, 19,505.99 and 13,321.39 is: 18,467.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.43 : 19,505.99 = 13,321.39 : x
  2. Step 2: Convert to fraction form
    14,070.43/19,505.99 = 13,321.39/x
  3. Step 3: Cross multiply
    14,070.43x = 19,505.99 × 13,321.39
  4. Step 4: Simplify right side
    14,070.43x = 259,846,866.82
  5. Step 5: Solve for x
    x = 259,846,866.82/14,070.43
  6. Step 6: Final answer
    x = 18,467.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.