Home / 14,264.94-21,388.50-5,489.40

Finding the Fourth Proportional to 14,264.94, 21,388.50 and 5,489.40

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Solution

The fourth proportional to 14,264.94, 21,388.50 and 5,489.40 is: 8,230.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,264.94 : 21,388.50 = 5,489.40 : x
  2. Step 2: Convert to fraction form
    14,264.94/21,388.50 = 5,489.40/x
  3. Step 3: Cross multiply
    14,264.94x = 21,388.50 × 5,489.40
  4. Step 4: Simplify right side
    14,264.94x = 117,410,031.90
  5. Step 5: Solve for x
    x = 117,410,031.90/14,264.94
  6. Step 6: Final answer
    x = 8,230.67

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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.