Home / 14,243.18-19,638.91-9,708.54

Finding the Fourth Proportional to 14,243.18, 19,638.91 and 9,708.54

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Solution

The fourth proportional to 14,243.18, 19,638.91 and 9,708.54 is: 13,386.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.18 : 19,638.91 = 9,708.54 : x
  2. Step 2: Convert to fraction form
    14,243.18/19,638.91 = 9,708.54/x
  3. Step 3: Cross multiply
    14,243.18x = 19,638.91 × 9,708.54
  4. Step 4: Simplify right side
    14,243.18x = 190,665,201.56
  5. Step 5: Solve for x
    x = 190,665,201.56/14,243.18
  6. Step 6: Final answer
    x = 13,386.42

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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.