Home / 11,116.80-16,668.90-4,535.28

Finding the Fourth Proportional to 11,116.80, 16,668.90 and 4,535.28

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Solution

The fourth proportional to 11,116.80, 16,668.90 and 4,535.28 is: 6,800.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.80 : 16,668.90 = 4,535.28 : x
  2. Step 2: Convert to fraction form
    11,116.80/16,668.90 = 4,535.28/x
  3. Step 3: Cross multiply
    11,116.80x = 16,668.90 × 4,535.28
  4. Step 4: Simplify right side
    11,116.80x = 75,598,128.79
  5. Step 5: Solve for x
    x = 75,598,128.79/11,116.80
  6. Step 6: Final answer
    x = 6,800.35

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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.