Home / 18,986.91-26,164.94-13,671.69

Finding the Fourth Proportional to 18,986.91, 26,164.94 and 13,671.69

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Solution

The fourth proportional to 18,986.91, 26,164.94 and 13,671.69 is: 18,840.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.91 : 26,164.94 = 13,671.69 : x
  2. Step 2: Convert to fraction form
    18,986.91/26,164.94 = 13,671.69/x
  3. Step 3: Cross multiply
    18,986.91x = 26,164.94 × 13,671.69
  4. Step 4: Simplify right side
    18,986.91x = 357,718,880.19
  5. Step 5: Solve for x
    x = 357,718,880.19/18,986.91
  6. Step 6: Final answer
    x = 18,840.29

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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.