Home / 14,135.10-21,194.55-4,272.90

Finding the Fourth Proportional to 14,135.10, 21,194.55 and 4,272.90

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Solution

The fourth proportional to 14,135.10, 21,194.55 and 4,272.90 is: 6,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.10 : 21,194.55 = 4,272.90 : x
  2. Step 2: Convert to fraction form
    14,135.10/21,194.55 = 4,272.90/x
  3. Step 3: Cross multiply
    14,135.10x = 21,194.55 × 4,272.90
  4. Step 4: Simplify right side
    14,135.10x = 90,562,192.70
  5. Step 5: Solve for x
    x = 90,562,192.70/14,135.10
  6. Step 6: Final answer
    x = 6,406.90

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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.