Home / 18,833.22-25,991.28-10,449.72

Finding the Fourth Proportional to 18,833.22, 25,991.28 and 10,449.72

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Solution

The fourth proportional to 18,833.22, 25,991.28 and 10,449.72 is: 14,421.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.22 : 25,991.28 = 10,449.72 : x
  2. Step 2: Convert to fraction form
    18,833.22/25,991.28 = 10,449.72/x
  3. Step 3: Cross multiply
    18,833.22x = 25,991.28 × 10,449.72
  4. Step 4: Simplify right side
    18,833.22x = 271,601,598.44
  5. Step 5: Solve for x
    x = 271,601,598.44/18,833.22
  6. Step 6: Final answer
    x = 14,421.41

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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.