Home / 18,986.75-26,201.61-10,489.46

Finding the Fourth Proportional to 18,986.75, 26,201.61 and 10,489.46

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Solution

The fourth proportional to 18,986.75, 26,201.61 and 10,489.46 is: 14,475.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.75 : 26,201.61 = 10,489.46 : x
  2. Step 2: Convert to fraction form
    18,986.75/26,201.61 = 10,489.46/x
  3. Step 3: Cross multiply
    18,986.75x = 26,201.61 × 10,489.46
  4. Step 4: Simplify right side
    18,986.75x = 274,840,609.02
  5. Step 5: Solve for x
    x = 274,840,609.02/18,986.75
  6. Step 6: Final answer
    x = 14,475.39

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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.