Home / 13,042.60-17,998.18-8,005.80

Finding the Fourth Proportional to 13,042.60, 17,998.18 and 8,005.80

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Solution

The fourth proportional to 13,042.60, 17,998.18 and 8,005.80 is: 11,047.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.60 : 17,998.18 = 8,005.80 : x
  2. Step 2: Convert to fraction form
    13,042.60/17,998.18 = 8,005.80/x
  3. Step 3: Cross multiply
    13,042.60x = 17,998.18 × 8,005.80
  4. Step 4: Simplify right side
    13,042.60x = 144,089,829.44
  5. Step 5: Solve for x
    x = 144,089,829.44/13,042.60
  6. Step 6: Final answer
    x = 11,047.63

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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.