Home / 18,986.93-26,201.80-10,489.65

Finding the Fourth Proportional to 18,986.93, 26,201.80 and 10,489.65

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Solution

The fourth proportional to 18,986.93, 26,201.80 and 10,489.65 is: 14,475.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.93 : 26,201.80 = 10,489.65 : x
  2. Step 2: Convert to fraction form
    18,986.93/26,201.80 = 10,489.65/x
  3. Step 3: Cross multiply
    18,986.93x = 26,201.80 × 10,489.65
  4. Step 4: Simplify right side
    18,986.93x = 274,847,803.11
  5. Step 5: Solve for x
    x = 274,847,803.11/18,986.93
  6. Step 6: Final answer
    x = 14,475.63

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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.