Home / 14,220.55-21,333.84-5,455.45

Finding the Fourth Proportional to 14,220.55, 21,333.84 and 5,455.45

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Solution

The fourth proportional to 14,220.55, 21,333.84 and 5,455.45 is: 8,184.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.55 : 21,333.84 = 5,455.45 : x
  2. Step 2: Convert to fraction form
    14,220.55/21,333.84 = 5,455.45/x
  3. Step 3: Cross multiply
    14,220.55x = 21,333.84 × 5,455.45
  4. Step 4: Simplify right side
    14,220.55x = 116,385,697.43
  5. Step 5: Solve for x
    x = 116,385,697.43/14,220.55
  6. Step 6: Final answer
    x = 8,184.33

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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.