Home / 14,171.50-19,557.57-8,205.09

Finding the Fourth Proportional to 14,171.50, 19,557.57 and 8,205.09

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Solution

The fourth proportional to 14,171.50, 19,557.57 and 8,205.09 is: 11,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,171.50 : 19,557.57 = 8,205.09 : x
  2. Step 2: Convert to fraction form
    14,171.50/19,557.57 = 8,205.09/x
  3. Step 3: Cross multiply
    14,171.50x = 19,557.57 × 8,205.09
  4. Step 4: Simplify right side
    14,171.50x = 160,471,622.03
  5. Step 5: Solve for x
    x = 160,471,622.03/14,171.50
  6. Step 6: Final answer
    x = 11,323.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.