Home / 13,889.38-19,173.57-8,860.33

Finding the Fourth Proportional to 13,889.38, 19,173.57 and 8,860.33

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Solution

The fourth proportional to 13,889.38, 19,173.57 and 8,860.33 is: 12,231.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.38 : 19,173.57 = 8,860.33 : x
  2. Step 2: Convert to fraction form
    13,889.38/19,173.57 = 8,860.33/x
  3. Step 3: Cross multiply
    13,889.38x = 19,173.57 × 8,860.33
  4. Step 4: Simplify right side
    13,889.38x = 169,884,157.48
  5. Step 5: Solve for x
    x = 169,884,157.48/13,889.38
  6. Step 6: Final answer
    x = 12,231.23

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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.