Home / 14,134.20-21,201.30-4,272.45

Finding the Fourth Proportional to 14,134.20, 21,201.30 and 4,272.45

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Solution

The fourth proportional to 14,134.20, 21,201.30 and 4,272.45 is: 6,408.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,134.20 : 21,201.30 = 4,272.45 : x
  2. Step 2: Convert to fraction form
    14,134.20/21,201.30 = 4,272.45/x
  3. Step 3: Cross multiply
    14,134.20x = 21,201.30 × 4,272.45
  4. Step 4: Simplify right side
    14,134.20x = 90,581,494.19
  5. Step 5: Solve for x
    x = 90,581,494.19/14,134.20
  6. Step 6: Final answer
    x = 6,408.68

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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.