Home / 19,564.67-26,999.70-11,905.31

Finding the Fourth Proportional to 19,564.67, 26,999.70 and 11,905.31

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Solution

The fourth proportional to 19,564.67, 26,999.70 and 11,905.31 is: 16,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,564.67 : 26,999.70 = 11,905.31 : x
  2. Step 2: Convert to fraction form
    19,564.67/26,999.70 = 11,905.31/x
  3. Step 3: Cross multiply
    19,564.67x = 26,999.70 × 11,905.31
  4. Step 4: Simplify right side
    19,564.67x = 321,439,663.41
  5. Step 5: Solve for x
    x = 321,439,663.41/19,564.67
  6. Step 6: Final answer
    x = 16,429.60

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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.