Home / 18,123.47-27,189.67-14,645.01

Finding the Fourth Proportional to 18,123.47, 27,189.67 and 14,645.01

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Solution

The fourth proportional to 18,123.47, 27,189.67 and 14,645.01 is: 21,971.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.47 : 27,189.67 = 14,645.01 : x
  2. Step 2: Convert to fraction form
    18,123.47/27,189.67 = 14,645.01/x
  3. Step 3: Cross multiply
    18,123.47x = 27,189.67 × 14,645.01
  4. Step 4: Simplify right side
    18,123.47x = 398,192,989.05
  5. Step 5: Solve for x
    x = 398,192,989.05/18,123.47
  6. Step 6: Final answer
    x = 21,971.12

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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.