Home / 14,076.45-21,118.23-5,311.44

Finding the Fourth Proportional to 14,076.45, 21,118.23 and 5,311.44

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Solution

The fourth proportional to 14,076.45, 21,118.23 and 5,311.44 is: 7,968.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,076.45 : 21,118.23 = 5,311.44 : x
  2. Step 2: Convert to fraction form
    14,076.45/21,118.23 = 5,311.44/x
  3. Step 3: Cross multiply
    14,076.45x = 21,118.23 × 5,311.44
  4. Step 4: Simplify right side
    14,076.45x = 112,168,211.55
  5. Step 5: Solve for x
    x = 112,168,211.55/14,076.45
  6. Step 6: Final answer
    x = 7,968.50

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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.