Home / 19,211.60-26,512.20-10,828.10

Finding the Fourth Proportional to 19,211.60, 26,512.20 and 10,828.10

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Solution

The fourth proportional to 19,211.60, 26,512.20 and 10,828.10 is: 14,942.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.60 : 26,512.20 = 10,828.10 : x
  2. Step 2: Convert to fraction form
    19,211.60/26,512.20 = 10,828.10/x
  3. Step 3: Cross multiply
    19,211.60x = 26,512.20 × 10,828.10
  4. Step 4: Simplify right side
    19,211.60x = 287,076,647.33
  5. Step 5: Solve for x
    x = 287,076,647.33/19,211.60
  6. Step 6: Final answer
    x = 14,942.88

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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.