Home / 18,361.51-27,538.61-5,210.35

Finding the Fourth Proportional to 18,361.51, 27,538.61 and 5,210.35

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Solution

The fourth proportional to 18,361.51, 27,538.61 and 5,210.35 is: 7,814.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,361.51 : 27,538.61 = 5,210.35 : x
  2. Step 2: Convert to fraction form
    18,361.51/27,538.61 = 5,210.35/x
  3. Step 3: Cross multiply
    18,361.51x = 27,538.61 × 5,210.35
  4. Step 4: Simplify right side
    18,361.51x = 143,485,701.72
  5. Step 5: Solve for x
    x = 143,485,701.72/18,361.51
  6. Step 6: Final answer
    x = 7,814.48

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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.