Home / 14,087.06-21,129.33-4,228.54

Finding the Fourth Proportional to 14,087.06, 21,129.33 and 4,228.54

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Solution

The fourth proportional to 14,087.06, 21,129.33 and 4,228.54 is: 6,342.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,087.06 : 21,129.33 = 4,228.54 : x
  2. Step 2: Convert to fraction form
    14,087.06/21,129.33 = 4,228.54/x
  3. Step 3: Cross multiply
    14,087.06x = 21,129.33 × 4,228.54
  4. Step 4: Simplify right side
    14,087.06x = 89,346,217.08
  5. Step 5: Solve for x
    x = 89,346,217.08/14,087.06
  6. Step 6: Final answer
    x = 6,342.43

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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.