Home / 7,860.64-11,782.45-3,965.35

Finding the Fourth Proportional to 7,860.64, 11,782.45 and 3,965.35

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Solution

The fourth proportional to 7,860.64, 11,782.45 and 3,965.35 is: 5,943.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.64 : 11,782.45 = 3,965.35 : x
  2. Step 2: Convert to fraction form
    7,860.64/11,782.45 = 3,965.35/x
  3. Step 3: Cross multiply
    7,860.64x = 11,782.45 × 3,965.35
  4. Step 4: Simplify right side
    7,860.64x = 46,721,538.11
  5. Step 5: Solve for x
    x = 46,721,538.11/7,860.64
  6. Step 6: Final answer
    x = 5,943.73

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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.