Home / 11,639.78-16,070.93-10,896.20

Finding the Fourth Proportional to 11,639.78, 16,070.93 and 10,896.20

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Solution

The fourth proportional to 11,639.78, 16,070.93 and 10,896.20 is: 15,044.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.78 : 16,070.93 = 10,896.20 : x
  2. Step 2: Convert to fraction form
    11,639.78/16,070.93 = 10,896.20/x
  3. Step 3: Cross multiply
    11,639.78x = 16,070.93 × 10,896.20
  4. Step 4: Simplify right side
    11,639.78x = 175,112,067.47
  5. Step 5: Solve for x
    x = 175,112,067.47/11,639.78
  6. Step 6: Final answer
    x = 15,044.28

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Half scale
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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.