Home / 11,390.53-17,077.29-7,682.35

Finding the Fourth Proportional to 11,390.53, 17,077.29 and 7,682.35

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Solution

The fourth proportional to 11,390.53, 17,077.29 and 7,682.35 is: 11,517.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.53 : 17,077.29 = 7,682.35 : x
  2. Step 2: Convert to fraction form
    11,390.53/17,077.29 = 7,682.35/x
  3. Step 3: Cross multiply
    11,390.53x = 17,077.29 × 7,682.35
  4. Step 4: Simplify right side
    11,390.53x = 131,193,718.83
  5. Step 5: Solve for x
    x = 131,193,718.83/11,390.53
  6. Step 6: Final answer
    x = 11,517.79

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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.