Home / 13,355.93-18,425.39-8,047.73

Finding the Fourth Proportional to 13,355.93, 18,425.39 and 8,047.73

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Solution

The fourth proportional to 13,355.93, 18,425.39 and 8,047.73 is: 11,102.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.93 : 18,425.39 = 8,047.73 : x
  2. Step 2: Convert to fraction form
    13,355.93/18,425.39 = 8,047.73/x
  3. Step 3: Cross multiply
    13,355.93x = 18,425.39 × 8,047.73
  4. Step 4: Simplify right side
    13,355.93x = 148,282,431.50
  5. Step 5: Solve for x
    x = 148,282,431.50/13,355.93
  6. Step 6: Final answer
    x = 11,102.37

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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.