Home / 14,220.06-21,330.21-5,452.89

Finding the Fourth Proportional to 14,220.06, 21,330.21 and 5,452.89

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Solution

The fourth proportional to 14,220.06, 21,330.21 and 5,452.89 is: 8,179.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.06 : 21,330.21 = 5,452.89 : x
  2. Step 2: Convert to fraction form
    14,220.06/21,330.21 = 5,452.89/x
  3. Step 3: Cross multiply
    14,220.06x = 21,330.21 × 5,452.89
  4. Step 4: Simplify right side
    14,220.06x = 116,311,288.81
  5. Step 5: Solve for x
    x = 116,311,288.81/14,220.06
  6. Step 6: Final answer
    x = 8,179.38

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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.