Home / 18,670.33-25,764.82-10,172.81

Finding the Fourth Proportional to 18,670.33, 25,764.82 and 10,172.81

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Solution

The fourth proportional to 18,670.33, 25,764.82 and 10,172.81 is: 14,038.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.33 : 25,764.82 = 10,172.81 : x
  2. Step 2: Convert to fraction form
    18,670.33/25,764.82 = 10,172.81/x
  3. Step 3: Cross multiply
    18,670.33x = 25,764.82 × 10,172.81
  4. Step 4: Simplify right side
    18,670.33x = 262,100,657.52
  5. Step 5: Solve for x
    x = 262,100,657.52/18,670.33
  6. Step 6: Final answer
    x = 14,038.35

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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.