Home / 15,769.80-23,633.10-12,853.80

Finding the Fourth Proportional to 15,769.80, 23,633.10 and 12,853.80

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Solution

The fourth proportional to 15,769.80, 23,633.10 and 12,853.80 is: 19,263.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769.80 : 23,633.10 = 12,853.80 : x
  2. Step 2: Convert to fraction form
    15,769.80/23,633.10 = 12,853.80/x
  3. Step 3: Cross multiply
    15,769.80x = 23,633.10 × 12,853.80
  4. Step 4: Simplify right side
    15,769.80x = 303,775,140.78
  5. Step 5: Solve for x
    x = 303,775,140.78/15,769.80
  6. Step 6: Final answer
    x = 19,263.09

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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.