Home / 18,899.56-28,316.94-13,342.96

Finding the Fourth Proportional to 18,899.56, 28,316.94 and 13,342.96

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Solution

The fourth proportional to 18,899.56, 28,316.94 and 13,342.96 is: 19,991.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899.56 : 28,316.94 = 13,342.96 : x
  2. Step 2: Convert to fraction form
    18,899.56/28,316.94 = 13,342.96/x
  3. Step 3: Cross multiply
    18,899.56x = 28,316.94 × 13,342.96
  4. Step 4: Simplify right side
    18,899.56x = 377,831,797.74
  5. Step 5: Solve for x
    x = 377,831,797.74/18,899.56
  6. Step 6: Final answer
    x = 19,991.57

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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.