Home / 11,133.40-16,700.31-5,208.69

Finding the Fourth Proportional to 11,133.40, 16,700.31 and 5,208.69

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Solution

The fourth proportional to 11,133.40, 16,700.31 and 5,208.69 is: 7,813.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.40 : 16,700.31 = 5,208.69 : x
  2. Step 2: Convert to fraction form
    11,133.40/16,700.31 = 5,208.69/x
  3. Step 3: Cross multiply
    11,133.40x = 16,700.31 × 5,208.69
  4. Step 4: Simplify right side
    11,133.40x = 86,986,737.69
  5. Step 5: Solve for x
    x = 86,986,737.69/11,133.40
  6. Step 6: Final answer
    x = 7,813.13

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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.