Home / 18,313.56-27,448.20-13,108.50

Finding the Fourth Proportional to 18,313.56, 27,448.20 and 13,108.50

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Solution

The fourth proportional to 18,313.56, 27,448.20 and 13,108.50 is: 19,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.56 : 27,448.20 = 13,108.50 : x
  2. Step 2: Convert to fraction form
    18,313.56/27,448.20 = 13,108.50/x
  3. Step 3: Cross multiply
    18,313.56x = 27,448.20 × 13,108.50
  4. Step 4: Simplify right side
    18,313.56x = 359,804,729.70
  5. Step 5: Solve for x
    x = 359,804,729.70/18,313.56
  6. Step 6: Final answer
    x = 19,646.90

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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.