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Finding the Fourth Proportional to 11,303.44, 16,949.04 and 8,978.38

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Solution

The fourth proportional to 11,303.44, 16,949.04 and 8,978.38 is: 13,462.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,303.44 : 16,949.04 = 8,978.38 : x
  2. Step 2: Convert to fraction form
    11,303.44/16,949.04 = 8,978.38/x
  3. Step 3: Cross multiply
    11,303.44x = 16,949.04 × 8,978.38
  4. Step 4: Simplify right side
    11,303.44x = 152,174,921.76
  5. Step 5: Solve for x
    x = 152,174,921.76/11,303.44
  6. Step 6: Final answer
    x = 13,462.71

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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.