Home / 11,707.85-17,561.78-4,782.35

Finding the Fourth Proportional to 11,707.85, 17,561.78 and 4,782.35

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Solution

The fourth proportional to 11,707.85, 17,561.78 and 4,782.35 is: 7,173.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,707.85 : 17,561.78 = 4,782.35 : x
  2. Step 2: Convert to fraction form
    11,707.85/17,561.78 = 4,782.35/x
  3. Step 3: Cross multiply
    11,707.85x = 17,561.78 × 4,782.35
  4. Step 4: Simplify right side
    11,707.85x = 83,986,578.58
  5. Step 5: Solve for x
    x = 83,986,578.58/11,707.85
  6. Step 6: Final answer
    x = 7,173.53

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1.5x scale

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.