Home / 13,739.01-20,611.75-10,938.43

Finding the Fourth Proportional to 13,739.01, 20,611.75 and 10,938.43

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Solution

The fourth proportional to 13,739.01, 20,611.75 and 10,938.43 is: 16,410.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.01 : 20,611.75 = 10,938.43 : x
  2. Step 2: Convert to fraction form
    13,739.01/20,611.75 = 10,938.43/x
  3. Step 3: Cross multiply
    13,739.01x = 20,611.75 × 10,938.43
  4. Step 4: Simplify right side
    13,739.01x = 225,460,186.03
  5. Step 5: Solve for x
    x = 225,460,186.03/13,739.01
  6. Step 6: Final answer
    x = 16,410.22

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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.