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Finding the Fourth Proportional to 18,274.10, 27,411.21 and 4,423.10

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Solution

The fourth proportional to 18,274.10, 27,411.21 and 4,423.10 is: 6,634.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.10 : 27,411.21 = 4,423.10 : x
  2. Step 2: Convert to fraction form
    18,274.10/27,411.21 = 4,423.10/x
  3. Step 3: Cross multiply
    18,274.10x = 27,411.21 × 4,423.10
  4. Step 4: Simplify right side
    18,274.10x = 121,242,385.89
  5. Step 5: Solve for x
    x = 121,242,385.89/18,274.10
  6. Step 6: Final answer
    x = 6,634.66

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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.