Home / 19,266.85-26,556.42-12,891.14

Finding the Fourth Proportional to 19,266.85, 26,556.42 and 12,891.14

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Solution

The fourth proportional to 19,266.85, 26,556.42 and 12,891.14 is: 17,768.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,266.85 : 26,556.42 = 12,891.14 : x
  2. Step 2: Convert to fraction form
    19,266.85/26,556.42 = 12,891.14/x
  3. Step 3: Cross multiply
    19,266.85x = 26,556.42 × 12,891.14
  4. Step 4: Simplify right side
    19,266.85x = 342,342,528.12
  5. Step 5: Solve for x
    x = 342,342,528.12/19,266.85
  6. Step 6: Final answer
    x = 17,768.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.