Home / 14,221.30-21,334.69-5,455.53

Finding the Fourth Proportional to 14,221.30, 21,334.69 and 5,455.53

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Solution

The fourth proportional to 14,221.30, 21,334.69 and 5,455.53 is: 8,184.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.30 : 21,334.69 = 5,455.53 : x
  2. Step 2: Convert to fraction form
    14,221.30/21,334.69 = 5,455.53/x
  3. Step 3: Cross multiply
    14,221.30x = 21,334.69 × 5,455.53
  4. Step 4: Simplify right side
    14,221.30x = 116,391,988.15
  5. Step 5: Solve for x
    x = 116,391,988.15/14,221.30
  6. Step 6: Final answer
    x = 8,184.34

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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.