Home / 7,862.37-11,782.80-4,347.16

Finding the Fourth Proportional to 7,862.37, 11,782.80 and 4,347.16

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Solution

The fourth proportional to 7,862.37, 11,782.80 and 4,347.16 is: 6,514.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,862.37 : 11,782.80 = 4,347.16 : x
  2. Step 2: Convert to fraction form
    7,862.37/11,782.80 = 4,347.16/x
  3. Step 3: Cross multiply
    7,862.37x = 11,782.80 × 4,347.16
  4. Step 4: Simplify right side
    7,862.37x = 51,221,716.85
  5. Step 5: Solve for x
    x = 51,221,716.85/7,862.37
  6. Step 6: Final answer
    x = 6,514.80

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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.