Home / 13,371.36-18,447.52-8,658.24

Finding the Fourth Proportional to 13,371.36, 18,447.52 and 8,658.24

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Solution

The fourth proportional to 13,371.36, 18,447.52 and 8,658.24 is: 11,945.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.36 : 18,447.52 = 8,658.24 : x
  2. Step 2: Convert to fraction form
    13,371.36/18,447.52 = 8,658.24/x
  3. Step 3: Cross multiply
    13,371.36x = 18,447.52 × 8,658.24
  4. Step 4: Simplify right side
    13,371.36x = 159,723,055.56
  5. Step 5: Solve for x
    x = 159,723,055.56/13,371.36
  6. Step 6: Final answer
    x = 11,945.16

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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.