Home / 13,126.08-19,696.48-6,969.92

Finding the Fourth Proportional to 13,126.08, 19,696.48 and 6,969.92

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Solution

The fourth proportional to 13,126.08, 19,696.48 and 6,969.92 is: 10,458.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.08 : 19,696.48 = 6,969.92 : x
  2. Step 2: Convert to fraction form
    13,126.08/19,696.48 = 6,969.92/x
  3. Step 3: Cross multiply
    13,126.08x = 19,696.48 × 6,969.92
  4. Step 4: Simplify right side
    13,126.08x = 137,282,889.88
  5. Step 5: Solve for x
    x = 137,282,889.88/13,126.08
  6. Step 6: Final answer
    x = 10,458.79

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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.