Home / 12,990.06-17,924.76-7,324.47

Finding the Fourth Proportional to 12,990.06, 17,924.76 and 7,324.47

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Solution

The fourth proportional to 12,990.06, 17,924.76 and 7,324.47 is: 10,106.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,990.06 : 17,924.76 = 7,324.47 : x
  2. Step 2: Convert to fraction form
    12,990.06/17,924.76 = 7,324.47/x
  3. Step 3: Cross multiply
    12,990.06x = 17,924.76 × 7,324.47
  4. Step 4: Simplify right side
    12,990.06x = 131,289,285.44
  5. Step 5: Solve for x
    x = 131,289,285.44/12,990.06
  6. Step 6: Final answer
    x = 10,106.91

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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.