Home / 11,218.24-16,827.80-4,978.30

Finding the Fourth Proportional to 11,218.24, 16,827.80 and 4,978.30

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Solution

The fourth proportional to 11,218.24, 16,827.80 and 4,978.30 is: 7,467.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.24 : 16,827.80 = 4,978.30 : x
  2. Step 2: Convert to fraction form
    11,218.24/16,827.80 = 4,978.30/x
  3. Step 3: Cross multiply
    11,218.24x = 16,827.80 × 4,978.30
  4. Step 4: Simplify right side
    11,218.24x = 83,773,836.74
  5. Step 5: Solve for x
    x = 83,773,836.74/11,218.24
  6. Step 6: Final answer
    x = 7,467.65

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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.