Home / 13,161.06-18,162.22-7,192.73

Finding the Fourth Proportional to 13,161.06, 18,162.22 and 7,192.73

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Solution

The fourth proportional to 13,161.06, 18,162.22 and 7,192.73 is: 9,925.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.06 : 18,162.22 = 7,192.73 : x
  2. Step 2: Convert to fraction form
    13,161.06/18,162.22 = 7,192.73/x
  3. Step 3: Cross multiply
    13,161.06x = 18,162.22 × 7,192.73
  4. Step 4: Simplify right side
    13,161.06x = 130,635,835.87
  5. Step 5: Solve for x
    x = 130,635,835.87/13,161.06
  6. Step 6: Final answer
    x = 9,925.94

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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.