Home / 13,243.60-18,273.63-8,998.03

Finding the Fourth Proportional to 13,243.60, 18,273.63 and 8,998.03

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Solution

The fourth proportional to 13,243.60, 18,273.63 and 8,998.03 is: 12,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.60 : 18,273.63 = 8,998.03 : x
  2. Step 2: Convert to fraction form
    13,243.60/18,273.63 = 8,998.03/x
  3. Step 3: Cross multiply
    13,243.60x = 18,273.63 × 8,998.03
  4. Step 4: Simplify right side
    13,243.60x = 164,426,670.95
  5. Step 5: Solve for x
    x = 164,426,670.95/13,243.60
  6. Step 6: Final answer
    x = 12,415.56

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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.