Home / 12,369.36-18,554.31-7,443.12

Finding the Fourth Proportional to 12,369.36, 18,554.31 and 7,443.12

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Solution

The fourth proportional to 12,369.36, 18,554.31 and 7,443.12 is: 11,164.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.36 : 18,554.31 = 7,443.12 : x
  2. Step 2: Convert to fraction form
    12,369.36/18,554.31 = 7,443.12/x
  3. Step 3: Cross multiply
    12,369.36x = 18,554.31 × 7,443.12
  4. Step 4: Simplify right side
    12,369.36x = 138,101,955.85
  5. Step 5: Solve for x
    x = 138,101,955.85/12,369.36
  6. Step 6: Final answer
    x = 11,164.84

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Similar ratio
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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.