Home / 13,712.23-18,922.84-7,424.61

Finding the Fourth Proportional to 13,712.23, 18,922.84 and 7,424.61

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Solution

The fourth proportional to 13,712.23, 18,922.84 and 7,424.61 is: 10,245.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.23 : 18,922.84 = 7,424.61 : x
  2. Step 2: Convert to fraction form
    13,712.23/18,922.84 = 7,424.61/x
  3. Step 3: Cross multiply
    13,712.23x = 18,922.84 × 7,424.61
  4. Step 4: Simplify right side
    13,712.23x = 140,494,707.09
  5. Step 5: Solve for x
    x = 140,494,707.09/13,712.23
  6. Step 6: Final answer
    x = 10,245.94

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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.