Home / 15,484.22-21,369.54-8,771.05

Finding the Fourth Proportional to 15,484.22, 21,369.54 and 8,771.05

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Solution

The fourth proportional to 15,484.22, 21,369.54 and 8,771.05 is: 12,104.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484.22 : 21,369.54 = 8,771.05 : x
  2. Step 2: Convert to fraction form
    15,484.22/21,369.54 = 8,771.05/x
  3. Step 3: Cross multiply
    15,484.22x = 21,369.54 × 8,771.05
  4. Step 4: Simplify right side
    15,484.22x = 187,433,196.97
  5. Step 5: Solve for x
    x = 187,433,196.97/15,484.22
  6. Step 6: Final answer
    x = 12,104.79

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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.