Home / 19,485.87-26,872.77-12,769.02

Finding the Fourth Proportional to 19,485.87, 26,872.77 and 12,769.02

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Solution

The fourth proportional to 19,485.87, 26,872.77 and 12,769.02 is: 17,609.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.87 : 26,872.77 = 12,769.02 : x
  2. Step 2: Convert to fraction form
    19,485.87/26,872.77 = 12,769.02/x
  3. Step 3: Cross multiply
    19,485.87x = 26,872.77 × 12,769.02
  4. Step 4: Simplify right side
    19,485.87x = 343,138,937.59
  5. Step 5: Solve for x
    x = 343,138,937.59/19,485.87
  6. Step 6: Final answer
    x = 17,609.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.