Home / 13,089.92-18,055.96-11,415.33

Finding the Fourth Proportional to 13,089.92, 18,055.96 and 11,415.33

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Solution

The fourth proportional to 13,089.92, 18,055.96 and 11,415.33 is: 15,746.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,089.92 : 18,055.96 = 11,415.33 : x
  2. Step 2: Convert to fraction form
    13,089.92/18,055.96 = 11,415.33/x
  3. Step 3: Cross multiply
    13,089.92x = 18,055.96 × 11,415.33
  4. Step 4: Simplify right side
    13,089.92x = 206,114,713.33
  5. Step 5: Solve for x
    x = 206,114,713.33/13,089.92
  6. Step 6: Final answer
    x = 15,746.07

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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.