Home / 12,815.11-19,222.81-4,495.33

Finding the Fourth Proportional to 12,815.11, 19,222.81 and 4,495.33

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Solution

The fourth proportional to 12,815.11, 19,222.81 and 4,495.33 is: 6,743.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815.11 : 19,222.81 = 4,495.33 : x
  2. Step 2: Convert to fraction form
    12,815.11/19,222.81 = 4,495.33/x
  3. Step 3: Cross multiply
    12,815.11x = 19,222.81 × 4,495.33
  4. Step 4: Simplify right side
    12,815.11x = 86,412,887.27
  5. Step 5: Solve for x
    x = 86,412,887.27/12,815.11
  6. Step 6: Final answer
    x = 6,743.05

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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.