Home / 11,326.12-16,990.52-5,478.52

Finding the Fourth Proportional to 11,326.12, 16,990.52 and 5,478.52

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Solution

The fourth proportional to 11,326.12, 16,990.52 and 5,478.52 is: 8,218.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.12 : 16,990.52 = 5,478.52 : x
  2. Step 2: Convert to fraction form
    11,326.12/16,990.52 = 5,478.52/x
  3. Step 3: Cross multiply
    11,326.12x = 16,990.52 × 5,478.52
  4. Step 4: Simplify right side
    11,326.12x = 93,082,903.63
  5. Step 5: Solve for x
    x = 93,082,903.63/11,326.12
  6. Step 6: Final answer
    x = 8,218.43

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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.