Home / 11,226.40-16,828.80-8,726.20

Finding the Fourth Proportional to 11,226.40, 16,828.80 and 8,726.20

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Solution

The fourth proportional to 11,226.40, 16,828.80 and 8,726.20 is: 13,080.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,226.40 : 16,828.80 = 8,726.20 : x
  2. Step 2: Convert to fraction form
    11,226.40/16,828.80 = 8,726.20/x
  3. Step 3: Cross multiply
    11,226.40x = 16,828.80 × 8,726.20
  4. Step 4: Simplify right side
    11,226.40x = 146,851,474.56
  5. Step 5: Solve for x
    x = 146,851,474.56/11,226.40
  6. Step 6: Final answer
    x = 13,080.91

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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.