Home / 12,386.70-17,096.26-7,909.67

Finding the Fourth Proportional to 12,386.70, 17,096.26 and 7,909.67

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Solution

The fourth proportional to 12,386.70, 17,096.26 and 7,909.67 is: 10,917.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.70 : 17,096.26 = 7,909.67 : x
  2. Step 2: Convert to fraction form
    12,386.70/17,096.26 = 7,909.67/x
  3. Step 3: Cross multiply
    12,386.70x = 17,096.26 × 7,909.67
  4. Step 4: Simplify right side
    12,386.70x = 135,225,778.03
  5. Step 5: Solve for x
    x = 135,225,778.03/12,386.70
  6. Step 6: Final answer
    x = 10,917.01

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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.