Home / 14,189.60-19,579.94-8,220.44

Finding the Fourth Proportional to 14,189.60, 19,579.94 and 8,220.44

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Solution

The fourth proportional to 14,189.60, 19,579.94 and 8,220.44 is: 11,343.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.60 : 19,579.94 = 8,220.44 : x
  2. Step 2: Convert to fraction form
    14,189.60/19,579.94 = 8,220.44/x
  3. Step 3: Cross multiply
    14,189.60x = 19,579.94 × 8,220.44
  4. Step 4: Simplify right side
    14,189.60x = 160,955,721.97
  5. Step 5: Solve for x
    x = 160,955,721.97/14,189.60
  6. Step 6: Final answer
    x = 11,343.22

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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.