Home / 15,742.10-23,540.24-12,191.86

Finding the Fourth Proportional to 15,742.10, 23,540.24 and 12,191.86

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Solution

The fourth proportional to 15,742.10, 23,540.24 and 12,191.86 is: 18,231.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,742.10 : 23,540.24 = 12,191.86 : x
  2. Step 2: Convert to fraction form
    15,742.10/23,540.24 = 12,191.86/x
  3. Step 3: Cross multiply
    15,742.10x = 23,540.24 × 12,191.86
  4. Step 4: Simplify right side
    15,742.10x = 286,999,310.45
  5. Step 5: Solve for x
    x = 286,999,310.45/15,742.10
  6. Step 6: Final answer
    x = 18,231.32

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1.5x scale

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.