Home / 11,219.12-16,826.40-5,666.72

Finding the Fourth Proportional to 11,219.12, 16,826.40 and 5,666.72

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Solution

The fourth proportional to 11,219.12, 16,826.40 and 5,666.72 is: 8,498.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.12 : 16,826.40 = 5,666.72 : x
  2. Step 2: Convert to fraction form
    11,219.12/16,826.40 = 5,666.72/x
  3. Step 3: Cross multiply
    11,219.12x = 16,826.40 × 5,666.72
  4. Step 4: Simplify right side
    11,219.12x = 95,350,497.41
  5. Step 5: Solve for x
    x = 95,350,497.41/11,219.12
  6. Step 6: Final answer
    x = 8,498.93

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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.