Home / 13,126.98-19,696.32-6,885.54

Finding the Fourth Proportional to 13,126.98, 19,696.32 and 6,885.54

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Solution

The fourth proportional to 13,126.98, 19,696.32 and 6,885.54 is: 10,331.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.98 : 19,696.32 = 6,885.54 : x
  2. Step 2: Convert to fraction form
    13,126.98/19,696.32 = 6,885.54/x
  3. Step 3: Cross multiply
    13,126.98x = 19,696.32 × 6,885.54
  4. Step 4: Simplify right side
    13,126.98x = 135,619,799.21
  5. Step 5: Solve for x
    x = 135,619,799.21/13,126.98
  6. Step 6: Final answer
    x = 10,331.38

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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.