Home / 18,412.06-27,619.67-5,085.05

Finding the Fourth Proportional to 18,412.06, 27,619.67 and 5,085.05

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Solution

The fourth proportional to 18,412.06, 27,619.67 and 5,085.05 is: 7,628.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412.06 : 27,619.67 = 5,085.05 : x
  2. Step 2: Convert to fraction form
    18,412.06/27,619.67 = 5,085.05/x
  3. Step 3: Cross multiply
    18,412.06x = 27,619.67 × 5,085.05
  4. Step 4: Simplify right side
    18,412.06x = 140,447,264.84
  5. Step 5: Solve for x
    x = 140,447,264.84/18,412.06
  6. Step 6: Final answer
    x = 7,628.01

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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.