Home / 12,810.63-19,190.85-11,293.38

Finding the Fourth Proportional to 12,810.63, 19,190.85 and 11,293.38

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Solution

The fourth proportional to 12,810.63, 19,190.85 and 11,293.38 is: 16,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.63 : 19,190.85 = 11,293.38 : x
  2. Step 2: Convert to fraction form
    12,810.63/19,190.85 = 11,293.38/x
  3. Step 3: Cross multiply
    12,810.63x = 19,190.85 × 11,293.38
  4. Step 4: Simplify right side
    12,810.63x = 216,729,561.57
  5. Step 5: Solve for x
    x = 216,729,561.57/12,810.63
  6. Step 6: Final answer
    x = 16,917.95

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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.