Home / 19,496.78-26,893.17-12,782.85

Finding the Fourth Proportional to 19,496.78, 26,893.17 and 12,782.85

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Solution

The fourth proportional to 19,496.78, 26,893.17 and 12,782.85 is: 17,632.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,496.78 : 26,893.17 = 12,782.85 : x
  2. Step 2: Convert to fraction form
    19,496.78/26,893.17 = 12,782.85/x
  3. Step 3: Cross multiply
    19,496.78x = 26,893.17 × 12,782.85
  4. Step 4: Simplify right side
    19,496.78x = 343,771,223.67
  5. Step 5: Solve for x
    x = 343,771,223.67/19,496.78
  6. Step 6: Final answer
    x = 17,632.21

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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.