Home / 18,618.94-25,693.43-10,661.91

Finding the Fourth Proportional to 18,618.94, 25,693.43 and 10,661.91

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Solution

The fourth proportional to 18,618.94, 25,693.43 and 10,661.91 is: 14,713.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.94 : 25,693.43 = 10,661.91 : x
  2. Step 2: Convert to fraction form
    18,618.94/25,693.43 = 10,661.91/x
  3. Step 3: Cross multiply
    18,618.94x = 25,693.43 × 10,661.91
  4. Step 4: Simplify right side
    18,618.94x = 273,941,038.25
  5. Step 5: Solve for x
    x = 273,941,038.25/18,618.94
  6. Step 6: Final answer
    x = 14,713.03

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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.