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Finding the Fourth Proportional to 12,632.64, 18,942.48 and 7,369.32

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Solution

The fourth proportional to 12,632.64, 18,942.48 and 7,369.32 is: 11,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,632.64 : 18,942.48 = 7,369.32 : x
  2. Step 2: Convert to fraction form
    12,632.64/18,942.48 = 7,369.32/x
  3. Step 3: Cross multiply
    12,632.64x = 18,942.48 × 7,369.32
  4. Step 4: Simplify right side
    12,632.64x = 139,593,196.71
  5. Step 5: Solve for x
    x = 139,593,196.71/12,632.64
  6. Step 6: Final answer
    x = 11,050.20

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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.