Home / 18,927.93-28,370.37-11,516.06

Finding the Fourth Proportional to 18,927.93, 28,370.37 and 11,516.06

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Solution

The fourth proportional to 18,927.93, 28,370.37 and 11,516.06 is: 17,260.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927.93 : 28,370.37 = 11,516.06 : x
  2. Step 2: Convert to fraction form
    18,927.93/28,370.37 = 11,516.06/x
  3. Step 3: Cross multiply
    18,927.93x = 28,370.37 × 11,516.06
  4. Step 4: Simplify right side
    18,927.93x = 326,714,741.29
  5. Step 5: Solve for x
    x = 326,714,741.29/18,927.93
  6. Step 6: Final answer
    x = 17,260.99

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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.