Home / 18,817.58-25,967.39-10,862.37

Finding the Fourth Proportional to 18,817.58, 25,967.39 and 10,862.37

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Solution

The fourth proportional to 18,817.58, 25,967.39 and 10,862.37 is: 14,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.58 : 25,967.39 = 10,862.37 : x
  2. Step 2: Convert to fraction form
    18,817.58/25,967.39 = 10,862.37/x
  3. Step 3: Cross multiply
    18,817.58x = 25,967.39 × 10,862.37
  4. Step 4: Simplify right side
    18,817.58x = 282,067,343.80
  5. Step 5: Solve for x
    x = 282,067,343.80/18,817.58
  6. Step 6: Final answer
    x = 14,989.56

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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.