Home / 19,388.64-26,758.56-11,006.72

Finding the Fourth Proportional to 19,388.64, 26,758.56 and 11,006.72

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Solution

The fourth proportional to 19,388.64, 26,758.56 and 11,006.72 is: 15,190.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,388.64 : 26,758.56 = 11,006.72 : x
  2. Step 2: Convert to fraction form
    19,388.64/26,758.56 = 11,006.72/x
  3. Step 3: Cross multiply
    19,388.64x = 26,758.56 × 11,006.72
  4. Step 4: Simplify right side
    19,388.64x = 294,523,977.52
  5. Step 5: Solve for x
    x = 294,523,977.52/19,388.64
  6. Step 6: Final answer
    x = 15,190.54

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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.