Home / 12,466.78-18,701.28-4,571.44

Finding the Fourth Proportional to 12,466.78, 18,701.28 and 4,571.44

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Solution

The fourth proportional to 12,466.78, 18,701.28 and 4,571.44 is: 6,857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,466.78 : 18,701.28 = 4,571.44 : x
  2. Step 2: Convert to fraction form
    12,466.78/18,701.28 = 4,571.44/x
  3. Step 3: Cross multiply
    12,466.78x = 18,701.28 × 4,571.44
  4. Step 4: Simplify right side
    12,466.78x = 85,491,779.44
  5. Step 5: Solve for x
    x = 85,491,779.44/12,466.78
  6. Step 6: Final answer
    x = 6,857.57

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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.