Home / 12,409.23-17,125.07-7,105.76

Finding the Fourth Proportional to 12,409.23, 17,125.07 and 7,105.76

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Solution

The fourth proportional to 12,409.23, 17,125.07 and 7,105.76 is: 9,806.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409.23 : 17,125.07 = 7,105.76 : x
  2. Step 2: Convert to fraction form
    12,409.23/17,125.07 = 7,105.76/x
  3. Step 3: Cross multiply
    12,409.23x = 17,125.07 × 7,105.76
  4. Step 4: Simplify right side
    12,409.23x = 121,686,620.44
  5. Step 5: Solve for x
    x = 121,686,620.44/12,409.23
  6. Step 6: Final answer
    x = 9,806.13

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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.