Home / 18,389.25-25,379.33-10,937.25

Finding the Fourth Proportional to 18,389.25, 25,379.33 and 10,937.25

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Solution

The fourth proportional to 18,389.25, 25,379.33 and 10,937.25 is: 15,094.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.25 : 25,379.33 = 10,937.25 : x
  2. Step 2: Convert to fraction form
    18,389.25/25,379.33 = 10,937.25/x
  3. Step 3: Cross multiply
    18,389.25x = 25,379.33 × 10,937.25
  4. Step 4: Simplify right side
    18,389.25x = 277,580,022.36
  5. Step 5: Solve for x
    x = 277,580,022.36/18,389.25
  6. Step 6: Final answer
    x = 15,094.69

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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.