Home / 12,626.28-18,966.76-7,698.85

Finding the Fourth Proportional to 12,626.28, 18,966.76 and 7,698.85

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Solution

The fourth proportional to 12,626.28, 18,966.76 and 7,698.85 is: 11,564.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.28 : 18,966.76 = 7,698.85 : x
  2. Step 2: Convert to fraction form
    12,626.28/18,966.76 = 7,698.85/x
  3. Step 3: Cross multiply
    12,626.28x = 18,966.76 × 7,698.85
  4. Step 4: Simplify right side
    12,626.28x = 146,022,173.56
  5. Step 5: Solve for x
    x = 146,022,173.56/12,626.28
  6. Step 6: Final answer
    x = 11,564.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.