Home / 15,217.44-20,999.67-8,502.84

Finding the Fourth Proportional to 15,217.44, 20,999.67 and 8,502.84

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Solution

The fourth proportional to 15,217.44, 20,999.67 and 8,502.84 is: 11,733.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,217.44 : 20,999.67 = 8,502.84 : x
  2. Step 2: Convert to fraction form
    15,217.44/20,999.67 = 8,502.84/x
  3. Step 3: Cross multiply
    15,217.44x = 20,999.67 × 8,502.84
  4. Step 4: Simplify right side
    15,217.44x = 178,556,834.06
  5. Step 5: Solve for x
    x = 178,556,834.06/15,217.44
  6. Step 6: Final answer
    x = 11,733.70

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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.