Home / 10,315.44-14,221.56-8,198.04

Finding the Fourth Proportional to 10,315.44, 14,221.56 and 8,198.04

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Solution

The fourth proportional to 10,315.44, 14,221.56 and 8,198.04 is: 11,302.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.44 : 14,221.56 = 8,198.04 : x
  2. Step 2: Convert to fraction form
    10,315.44/14,221.56 = 8,198.04/x
  3. Step 3: Cross multiply
    10,315.44x = 14,221.56 × 8,198.04
  4. Step 4: Simplify right side
    10,315.44x = 116,588,917.74
  5. Step 5: Solve for x
    x = 116,588,917.74/10,315.44
  6. Step 6: Final answer
    x = 11,302.37

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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.