Home / 10,669.44-15,999.88-4,425.20

Finding the Fourth Proportional to 10,669.44, 15,999.88 and 4,425.20

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Solution

The fourth proportional to 10,669.44, 15,999.88 and 4,425.20 is: 6,636.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,669.44 : 15,999.88 = 4,425.20 : x
  2. Step 2: Convert to fraction form
    10,669.44/15,999.88 = 4,425.20/x
  3. Step 3: Cross multiply
    10,669.44x = 15,999.88 × 4,425.20
  4. Step 4: Simplify right side
    10,669.44x = 70,802,668.98
  5. Step 5: Solve for x
    x = 70,802,668.98/10,669.44
  6. Step 6: Final answer
    x = 6,636.02

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1.5x scale

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.