Home / 13,310.82-19,971.09-5,909.85

Finding the Fourth Proportional to 13,310.82, 19,971.09 and 5,909.85

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Solution

The fourth proportional to 13,310.82, 19,971.09 and 5,909.85 is: 8,866.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.82 : 19,971.09 = 5,909.85 : x
  2. Step 2: Convert to fraction form
    13,310.82/19,971.09 = 5,909.85/x
  3. Step 3: Cross multiply
    13,310.82x = 19,971.09 × 5,909.85
  4. Step 4: Simplify right side
    13,310.82x = 118,026,146.24
  5. Step 5: Solve for x
    x = 118,026,146.24/13,310.82
  6. Step 6: Final answer
    x = 8,866.93

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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.