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Finding the Fourth Proportional to 18,484.71, 27,730.10 and 10,168.64

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Solution

The fourth proportional to 18,484.71, 27,730.10 and 10,168.64 is: 15,254.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,484.71 : 27,730.10 = 10,168.64 : x
  2. Step 2: Convert to fraction form
    18,484.71/27,730.10 = 10,168.64/x
  3. Step 3: Cross multiply
    18,484.71x = 27,730.10 × 10,168.64
  4. Step 4: Simplify right side
    18,484.71x = 281,977,337.62
  5. Step 5: Solve for x
    x = 281,977,337.62/18,484.71
  6. Step 6: Final answer
    x = 15,254.63

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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.