Home / 18,139.56-27,215.22-8,899.08

Finding the Fourth Proportional to 18,139.56, 27,215.22 and 8,899.08

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Solution

The fourth proportional to 18,139.56, 27,215.22 and 8,899.08 is: 13,351.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.56 : 27,215.22 = 8,899.08 : x
  2. Step 2: Convert to fraction form
    18,139.56/27,215.22 = 8,899.08/x
  3. Step 3: Cross multiply
    18,139.56x = 27,215.22 × 8,899.08
  4. Step 4: Simplify right side
    18,139.56x = 242,190,420.00
  5. Step 5: Solve for x
    x = 242,190,420.00/18,139.56
  6. Step 6: Final answer
    x = 13,351.50

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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.