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Finding the Fourth Proportional to 11,423.58, 17,066.24 and 11,358.78

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Solution

The fourth proportional to 11,423.58, 17,066.24 and 11,358.78 is: 16,969.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,423.58 : 17,066.24 = 11,358.78 : x
  2. Step 2: Convert to fraction form
    11,423.58/17,066.24 = 11,358.78/x
  3. Step 3: Cross multiply
    11,423.58x = 17,066.24 × 11,358.78
  4. Step 4: Simplify right side
    11,423.58x = 193,851,608.79
  5. Step 5: Solve for x
    x = 193,851,608.79/11,423.58
  6. Step 6: Final answer
    x = 16,969.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.