Home / 15,565.55-21,481.73-8,853.27

Finding the Fourth Proportional to 15,565.55, 21,481.73 and 8,853.27

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Solution

The fourth proportional to 15,565.55, 21,481.73 and 8,853.27 is: 12,218.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,565.55 : 21,481.73 = 8,853.27 : x
  2. Step 2: Convert to fraction form
    15,565.55/21,481.73 = 8,853.27/x
  3. Step 3: Cross multiply
    15,565.55x = 21,481.73 × 8,853.27
  4. Step 4: Simplify right side
    15,565.55x = 190,183,511.49
  5. Step 5: Solve for x
    x = 190,183,511.49/15,565.55
  6. Step 6: Final answer
    x = 12,218.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.