Home / 15,284.86-21,093.33-8,911.27

Finding the Fourth Proportional to 15,284.86, 21,093.33 and 8,911.27

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Solution

The fourth proportional to 15,284.86, 21,093.33 and 8,911.27 is: 12,297.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284.86 : 21,093.33 = 8,911.27 : x
  2. Step 2: Convert to fraction form
    15,284.86/21,093.33 = 8,911.27/x
  3. Step 3: Cross multiply
    15,284.86x = 21,093.33 × 8,911.27
  4. Step 4: Simplify right side
    15,284.86x = 187,968,368.49
  5. Step 5: Solve for x
    x = 187,968,368.49/15,284.86
  6. Step 6: Final answer
    x = 12,297.69

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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.