Home / 18,515.72-27,767.46-5,368.52

Finding the Fourth Proportional to 18,515.72, 27,767.46 and 5,368.52

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Solution

The fourth proportional to 18,515.72, 27,767.46 and 5,368.52 is: 8,051.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.72 : 27,767.46 = 5,368.52 : x
  2. Step 2: Convert to fraction form
    18,515.72/27,767.46 = 5,368.52/x
  3. Step 3: Cross multiply
    18,515.72x = 27,767.46 × 5,368.52
  4. Step 4: Simplify right side
    18,515.72x = 149,070,164.36
  5. Step 5: Solve for x
    x = 149,070,164.36/18,515.72
  6. Step 6: Final answer
    x = 8,051.01

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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.