Home / 12,409.15-17,124.69-6,743.94

Finding the Fourth Proportional to 12,409.15, 17,124.69 and 6,743.94

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Solution

The fourth proportional to 12,409.15, 17,124.69 and 6,743.94 is: 9,306.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409.15 : 17,124.69 = 6,743.94 : x
  2. Step 2: Convert to fraction form
    12,409.15/17,124.69 = 6,743.94/x
  3. Step 3: Cross multiply
    12,409.15x = 17,124.69 × 6,743.94
  4. Step 4: Simplify right side
    12,409.15x = 115,487,881.88
  5. Step 5: Solve for x
    x = 115,487,881.88/12,409.15
  6. Step 6: Final answer
    x = 9,306.67

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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.