Home / 18,119.37-27,189.36-14,159.46

Finding the Fourth Proportional to 18,119.37, 27,189.36 and 14,159.46

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Solution

The fourth proportional to 18,119.37, 27,189.36 and 14,159.46 is: 21,247.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.37 : 27,189.36 = 14,159.46 : x
  2. Step 2: Convert to fraction form
    18,119.37/27,189.36 = 14,159.46/x
  3. Step 3: Cross multiply
    18,119.37x = 27,189.36 × 14,159.46
  4. Step 4: Simplify right side
    18,119.37x = 384,986,655.35
  5. Step 5: Solve for x
    x = 384,986,655.35/18,119.37
  6. Step 6: Final answer
    x = 21,247.24

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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.