Home / 19,086.42-26,337.60-11,129.40

Finding the Fourth Proportional to 19,086.42, 26,337.60 and 11,129.40

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Solution

The fourth proportional to 19,086.42, 26,337.60 and 11,129.40 is: 15,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,086.42 : 26,337.60 = 11,129.40 : x
  2. Step 2: Convert to fraction form
    19,086.42/26,337.60 = 11,129.40/x
  3. Step 3: Cross multiply
    19,086.42x = 26,337.60 × 11,129.40
  4. Step 4: Simplify right side
    19,086.42x = 293,121,685.44
  5. Step 5: Solve for x
    x = 293,121,685.44/19,086.42
  6. Step 6: Final answer
    x = 15,357.60

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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.