Home / 14,235.60-21,353.40-13,198.80

Finding the Fourth Proportional to 14,235.60, 21,353.40 and 13,198.80

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Solution

The fourth proportional to 14,235.60, 21,353.40 and 13,198.80 is: 19,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,235.60 : 21,353.40 = 13,198.80 : x
  2. Step 2: Convert to fraction form
    14,235.60/21,353.40 = 13,198.80/x
  3. Step 3: Cross multiply
    14,235.60x = 21,353.40 × 13,198.80
  4. Step 4: Simplify right side
    14,235.60x = 281,839,255.92
  5. Step 5: Solve for x
    x = 281,839,255.92/14,235.60
  6. Step 6: Final answer
    x = 19,798.20

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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.