Home / 13,477.33-18,600.36-8,172.13

Finding the Fourth Proportional to 13,477.33, 18,600.36 and 8,172.13

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Solution

The fourth proportional to 13,477.33, 18,600.36 and 8,172.13 is: 11,278.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.33 : 18,600.36 = 8,172.13 : x
  2. Step 2: Convert to fraction form
    13,477.33/18,600.36 = 8,172.13/x
  3. Step 3: Cross multiply
    13,477.33x = 18,600.36 × 8,172.13
  4. Step 4: Simplify right side
    13,477.33x = 152,004,559.97
  5. Step 5: Solve for x
    x = 152,004,559.97/13,477.33
  6. Step 6: Final answer
    x = 11,278.54

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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.