Home / 19,905.60-27,466.59-11,406.09

Finding the Fourth Proportional to 19,905.60, 27,466.59 and 11,406.09

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Solution

The fourth proportional to 19,905.60, 27,466.59 and 11,406.09 is: 15,738.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.60 : 27,466.59 = 11,406.09 : x
  2. Step 2: Convert to fraction form
    19,905.60/27,466.59 = 11,406.09/x
  3. Step 3: Cross multiply
    19,905.60x = 27,466.59 × 11,406.09
  4. Step 4: Simplify right side
    19,905.60x = 313,286,328.87
  5. Step 5: Solve for x
    x = 313,286,328.87/19,905.60
  6. Step 6: Final answer
    x = 15,738.60

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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.