Home / 12,668.43-19,005.30-4,770.80

Finding the Fourth Proportional to 12,668.43, 19,005.30 and 4,770.80

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Solution

The fourth proportional to 12,668.43, 19,005.30 and 4,770.80 is: 7,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.43 : 19,005.30 = 4,770.80 : x
  2. Step 2: Convert to fraction form
    12,668.43/19,005.30 = 4,770.80/x
  3. Step 3: Cross multiply
    12,668.43x = 19,005.30 × 4,770.80
  4. Step 4: Simplify right side
    12,668.43x = 90,670,461.48
  5. Step 5: Solve for x
    x = 90,670,461.48/12,668.43
  6. Step 6: Final answer
    x = 7,157.20

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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.