Home / 18,986.97-26,201.91-10,489.67

Finding the Fourth Proportional to 18,986.97, 26,201.91 and 10,489.67

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Solution

The fourth proportional to 18,986.97, 26,201.91 and 10,489.67 is: 14,475.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.97 : 26,201.91 = 10,489.67 : x
  2. Step 2: Convert to fraction form
    18,986.97/26,201.91 = 10,489.67/x
  3. Step 3: Cross multiply
    18,986.97x = 26,201.91 × 10,489.67
  4. Step 4: Simplify right side
    18,986.97x = 274,849,389.27
  5. Step 5: Solve for x
    x = 274,849,389.27/18,986.97
  6. Step 6: Final answer
    x = 14,475.68

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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.