Home / 19,086.42-26,311.56-13,403.86

Finding the Fourth Proportional to 19,086.42, 26,311.56 and 13,403.86

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Solution

The fourth proportional to 19,086.42, 26,311.56 and 13,403.86 is: 18,477.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,086.42 : 26,311.56 = 13,403.86 : x
  2. Step 2: Convert to fraction form
    19,086.42/26,311.56 = 13,403.86/x
  3. Step 3: Cross multiply
    19,086.42x = 26,311.56 × 13,403.86
  4. Step 4: Simplify right side
    19,086.42x = 352,676,466.62
  5. Step 5: Solve for x
    x = 352,676,466.62/19,086.42
  6. Step 6: Final answer
    x = 18,477.87

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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.