Home / 13,305.42-18,369.33-11,829.30

Finding the Fourth Proportional to 13,305.42, 18,369.33 and 11,829.30

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Solution

The fourth proportional to 13,305.42, 18,369.33 and 11,829.30 is: 16,331.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.42 : 18,369.33 = 11,829.30 : x
  2. Step 2: Convert to fraction form
    13,305.42/18,369.33 = 11,829.30/x
  3. Step 3: Cross multiply
    13,305.42x = 18,369.33 × 11,829.30
  4. Step 4: Simplify right side
    13,305.42x = 217,296,315.37
  5. Step 5: Solve for x
    x = 217,296,315.37/13,305.42
  6. Step 6: Final answer
    x = 16,331.41

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1.5x scale

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.