Home / 16,855.70-23,289.73-13,345.56

Finding the Fourth Proportional to 16,855.70, 23,289.73 and 13,345.56

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Solution

The fourth proportional to 16,855.70, 23,289.73 and 13,345.56 is: 18,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,855.70 : 23,289.73 = 13,345.56 : x
  2. Step 2: Convert to fraction form
    16,855.70/23,289.73 = 13,345.56/x
  3. Step 3: Cross multiply
    16,855.70x = 23,289.73 × 13,345.56
  4. Step 4: Simplify right side
    16,855.70x = 310,814,455.73
  5. Step 5: Solve for x
    x = 310,814,455.73/16,855.70
  6. Step 6: Final answer
    x = 18,439.73

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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.