Home / 7,707.90-11,563.86-2,161.26

Finding the Fourth Proportional to 7,707.90, 11,563.86 and 2,161.26

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Solution

The fourth proportional to 7,707.90, 11,563.86 and 2,161.26 is: 3,242.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.90 : 11,563.86 = 2,161.26 : x
  2. Step 2: Convert to fraction form
    7,707.90/11,563.86 = 2,161.26/x
  3. Step 3: Cross multiply
    7,707.90x = 11,563.86 × 2,161.26
  4. Step 4: Simplify right side
    7,707.90x = 24,992,508.06
  5. Step 5: Solve for x
    x = 24,992,508.06/7,707.90
  6. Step 6: Final answer
    x = 3,242.45

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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.