Home / 18,826.56-28,225.78-11,328.36

Finding the Fourth Proportional to 18,826.56, 28,225.78 and 11,328.36

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Solution

The fourth proportional to 18,826.56, 28,225.78 and 11,328.36 is: 16,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.56 : 28,225.78 = 11,328.36 : x
  2. Step 2: Convert to fraction form
    18,826.56/28,225.78 = 11,328.36/x
  3. Step 3: Cross multiply
    18,826.56x = 28,225.78 × 11,328.36
  4. Step 4: Simplify right side
    18,826.56x = 319,751,797.12
  5. Step 5: Solve for x
    x = 319,751,797.12/18,826.56
  6. Step 6: Final answer
    x = 16,984.08

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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.