Home / 12,789.58-19,186.96-4,022.45

Finding the Fourth Proportional to 12,789.58, 19,186.96 and 4,022.45

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Solution

The fourth proportional to 12,789.58, 19,186.96 and 4,022.45 is: 6,034.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789.58 : 19,186.96 = 4,022.45 : x
  2. Step 2: Convert to fraction form
    12,789.58/19,186.96 = 4,022.45/x
  3. Step 3: Cross multiply
    12,789.58x = 19,186.96 × 4,022.45
  4. Step 4: Simplify right side
    12,789.58x = 77,178,587.25
  5. Step 5: Solve for x
    x = 77,178,587.25/12,789.58
  6. Step 6: Final answer
    x = 6,034.49

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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.