Home / 13,351.95-20,021.85-7,110.36

Finding the Fourth Proportional to 13,351.95, 20,021.85 and 7,110.36

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Solution

The fourth proportional to 13,351.95, 20,021.85 and 7,110.36 is: 10,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.95 : 20,021.85 = 7,110.36 : x
  2. Step 2: Convert to fraction form
    13,351.95/20,021.85 = 7,110.36/x
  3. Step 3: Cross multiply
    13,351.95x = 20,021.85 × 7,110.36
  4. Step 4: Simplify right side
    13,351.95x = 142,362,561.37
  5. Step 5: Solve for x
    x = 142,362,561.37/13,351.95
  6. Step 6: Final answer
    x = 10,662.30

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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.