Home / 12,965.60-19,451.46-4,200.50

Finding the Fourth Proportional to 12,965.60, 19,451.46 and 4,200.50

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Solution

The fourth proportional to 12,965.60, 19,451.46 and 4,200.50 is: 6,301.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.60 : 19,451.46 = 4,200.50 : x
  2. Step 2: Convert to fraction form
    12,965.60/19,451.46 = 4,200.50/x
  3. Step 3: Cross multiply
    12,965.60x = 19,451.46 × 4,200.50
  4. Step 4: Simplify right side
    12,965.60x = 81,705,857.73
  5. Step 5: Solve for x
    x = 81,705,857.73/12,965.60
  6. Step 6: Final answer
    x = 6,301.74

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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.