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Finding the Fourth Proportional to 18,001.98, 26,984.75 and 8,628.26

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Solution

The fourth proportional to 18,001.98, 26,984.75 and 8,628.26 is: 12,933.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.98 : 26,984.75 = 8,628.26 : x
  2. Step 2: Convert to fraction form
    18,001.98/26,984.75 = 8,628.26/x
  3. Step 3: Cross multiply
    18,001.98x = 26,984.75 × 8,628.26
  4. Step 4: Simplify right side
    18,001.98x = 232,831,260.97
  5. Step 5: Solve for x
    x = 232,831,260.97/18,001.98
  6. Step 6: Final answer
    x = 12,933.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.