Home / 12,450.42-17,184.51-11,189.34

Finding the Fourth Proportional to 12,450.42, 17,184.51 and 11,189.34

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Solution

The fourth proportional to 12,450.42, 17,184.51 and 11,189.34 is: 15,443.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.42 : 17,184.51 = 11,189.34 : x
  2. Step 2: Convert to fraction form
    12,450.42/17,184.51 = 11,189.34/x
  3. Step 3: Cross multiply
    12,450.42x = 17,184.51 × 11,189.34
  4. Step 4: Simplify right side
    12,450.42x = 192,283,325.12
  5. Step 5: Solve for x
    x = 192,283,325.12/12,450.42
  6. Step 6: Final answer
    x = 15,443.92

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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.