Home / 18,986.94-26,201.75-10,489.77

Finding the Fourth Proportional to 18,986.94, 26,201.75 and 10,489.77

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Solution

The fourth proportional to 18,986.94, 26,201.75 and 10,489.77 is: 14,475.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.94 : 26,201.75 = 10,489.77 : x
  2. Step 2: Convert to fraction form
    18,986.94/26,201.75 = 10,489.77/x
  3. Step 3: Cross multiply
    18,986.94x = 26,201.75 × 10,489.77
  4. Step 4: Simplify right side
    18,986.94x = 274,850,278.65
  5. Step 5: Solve for x
    x = 274,850,278.65/18,986.94
  6. Step 6: Final answer
    x = 14,475.75

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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.