Home / 17,886.72-26,826.24-11,220

Finding the Fourth Proportional to 17,886.72, 26,826.24 and 11,220

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Solution

The fourth proportional to 17,886.72, 26,826.24 and 11,220 is: 16,827.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,886.72 : 26,826.24 = 11,220 : x
  2. Step 2: Convert to fraction form
    17,886.72/26,826.24 = 11,220/x
  3. Step 3: Cross multiply
    17,886.72x = 26,826.24 × 11,220
  4. Step 4: Simplify right side
    17,886.72x = 300,990,412.80
  5. Step 5: Solve for x
    x = 300,990,412.80/17,886.72
  6. Step 6: Final answer
    x = 16,827.59

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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.