Home / 11,668.07-17,509.35-4,742.57

Finding the Fourth Proportional to 11,668.07, 17,509.35 and 4,742.57

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Solution

The fourth proportional to 11,668.07, 17,509.35 and 4,742.57 is: 7,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,668.07 : 17,509.35 = 4,742.57 : x
  2. Step 2: Convert to fraction form
    11,668.07/17,509.35 = 4,742.57/x
  3. Step 3: Cross multiply
    11,668.07x = 17,509.35 × 4,742.57
  4. Step 4: Simplify right side
    11,668.07x = 83,039,230.48
  5. Step 5: Solve for x
    x = 83,039,230.48/11,668.07
  6. Step 6: Final answer
    x = 7,116.80

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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.