Home / 15,851.21-21,874.70-8,583.38

Finding the Fourth Proportional to 15,851.21, 21,874.70 and 8,583.38

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Solution

The fourth proportional to 15,851.21, 21,874.70 and 8,583.38 is: 11,845.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,851.21 : 21,874.70 = 8,583.38 : x
  2. Step 2: Convert to fraction form
    15,851.21/21,874.70 = 8,583.38/x
  3. Step 3: Cross multiply
    15,851.21x = 21,874.70 × 8,583.38
  4. Step 4: Simplify right side
    15,851.21x = 187,758,874.26
  5. Step 5: Solve for x
    x = 187,758,874.26/15,851.21
  6. Step 6: Final answer
    x = 11,845.09

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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.