Home / 25,137.86-37,649.38-11,999.45

Finding the Fourth Proportional to 25,137.86, 37,649.38 and 11,999.45

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Solution

The fourth proportional to 25,137.86, 37,649.38 and 11,999.45 is: 17,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,137.86 : 37,649.38 = 11,999.45 : x
  2. Step 2: Convert to fraction form
    25,137.86/37,649.38 = 11,999.45/x
  3. Step 3: Cross multiply
    25,137.86x = 37,649.38 × 11,999.45
  4. Step 4: Simplify right side
    25,137.86x = 451,771,950.22
  5. Step 5: Solve for x
    x = 451,771,950.22/25,137.86
  6. Step 6: Final answer
    x = 17,971.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.