Home / 18,412.29-27,619.36-5,266.60

Finding the Fourth Proportional to 18,412.29, 27,619.36 and 5,266.60

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Solution

The fourth proportional to 18,412.29, 27,619.36 and 5,266.60 is: 7,900.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412.29 : 27,619.36 = 5,266.60 : x
  2. Step 2: Convert to fraction form
    18,412.29/27,619.36 = 5,266.60/x
  3. Step 3: Cross multiply
    18,412.29x = 27,619.36 × 5,266.60
  4. Step 4: Simplify right side
    18,412.29x = 145,460,039.16
  5. Step 5: Solve for x
    x = 145,460,039.16/18,412.29
  6. Step 6: Final answer
    x = 7,900.16

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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.