Home / 12,928.27-17,847.13-8,628.48

Finding the Fourth Proportional to 12,928.27, 17,847.13 and 8,628.48

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Solution

The fourth proportional to 12,928.27, 17,847.13 and 8,628.48 is: 11,911.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.27 : 17,847.13 = 8,628.48 : x
  2. Step 2: Convert to fraction form
    12,928.27/17,847.13 = 8,628.48/x
  3. Step 3: Cross multiply
    12,928.27x = 17,847.13 × 8,628.48
  4. Step 4: Simplify right side
    12,928.27x = 153,993,561.12
  5. Step 5: Solve for x
    x = 153,993,561.12/12,928.27
  6. Step 6: Final answer
    x = 11,911.38

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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.