Home / 19,336.78-26,669.55-12,961.18

Finding the Fourth Proportional to 19,336.78, 26,669.55 and 12,961.18

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Solution

The fourth proportional to 19,336.78, 26,669.55 and 12,961.18 is: 17,876.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,336.78 : 26,669.55 = 12,961.18 : x
  2. Step 2: Convert to fraction form
    19,336.78/26,669.55 = 12,961.18/x
  3. Step 3: Cross multiply
    19,336.78x = 26,669.55 × 12,961.18
  4. Step 4: Simplify right side
    19,336.78x = 345,668,838.07
  5. Step 5: Solve for x
    x = 345,668,838.07/19,336.78
  6. Step 6: Final answer
    x = 17,876.24

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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.