Home / 14,511.44-20,018.76-8,912.72

Finding the Fourth Proportional to 14,511.44, 20,018.76 and 8,912.72

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Solution

The fourth proportional to 14,511.44, 20,018.76 and 8,912.72 is: 12,295.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,511.44 : 20,018.76 = 8,912.72 : x
  2. Step 2: Convert to fraction form
    14,511.44/20,018.76 = 8,912.72/x
  3. Step 3: Cross multiply
    14,511.44x = 20,018.76 × 8,912.72
  4. Step 4: Simplify right side
    14,511.44x = 178,421,602.63
  5. Step 5: Solve for x
    x = 178,421,602.63/14,511.44
  6. Step 6: Final answer
    x = 12,295.24

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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.