Home / 12,668.81-19,003.21-4,772.52

Finding the Fourth Proportional to 12,668.81, 19,003.21 and 4,772.52

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Solution

The fourth proportional to 12,668.81, 19,003.21 and 4,772.52 is: 7,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.81 : 19,003.21 = 4,772.52 : x
  2. Step 2: Convert to fraction form
    12,668.81/19,003.21 = 4,772.52/x
  3. Step 3: Cross multiply
    12,668.81x = 19,003.21 × 4,772.52
  4. Step 4: Simplify right side
    12,668.81x = 90,693,187.86
  5. Step 5: Solve for x
    x = 90,693,187.86/12,668.81
  6. Step 6: Final answer
    x = 7,158.78

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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.