Home / 11,862.12-16,367.40-7,146.66

Finding the Fourth Proportional to 11,862.12, 16,367.40 and 7,146.66

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Solution

The fourth proportional to 11,862.12, 16,367.40 and 7,146.66 is: 9,860.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,862.12 : 16,367.40 = 7,146.66 : x
  2. Step 2: Convert to fraction form
    11,862.12/16,367.40 = 7,146.66/x
  3. Step 3: Cross multiply
    11,862.12x = 16,367.40 × 7,146.66
  4. Step 4: Simplify right side
    11,862.12x = 116,972,242.88
  5. Step 5: Solve for x
    x = 116,972,242.88/11,862.12
  6. Step 6: Final answer
    x = 9,860.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.