Home / 14,190.60-21,285.90-12,736.20

Finding the Fourth Proportional to 14,190.60, 21,285.90 and 12,736.20

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Solution

The fourth proportional to 14,190.60, 21,285.90 and 12,736.20 is: 19,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.60 : 21,285.90 = 12,736.20 : x
  2. Step 2: Convert to fraction form
    14,190.60/21,285.90 = 12,736.20/x
  3. Step 3: Cross multiply
    14,190.60x = 21,285.90 × 12,736.20
  4. Step 4: Simplify right side
    14,190.60x = 271,101,479.58
  5. Step 5: Solve for x
    x = 271,101,479.58/14,190.60
  6. Step 6: Final answer
    x = 19,104.30

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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.