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Finding the Fourth Proportional to 12,811.44, 19,214.28 and 4,603.44

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Solution

The fourth proportional to 12,811.44, 19,214.28 and 4,603.44 is: 6,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.44 : 19,214.28 = 4,603.44 : x
  2. Step 2: Convert to fraction form
    12,811.44/19,214.28 = 4,603.44/x
  3. Step 3: Cross multiply
    12,811.44x = 19,214.28 × 4,603.44
  4. Step 4: Simplify right side
    12,811.44x = 88,451,785.12
  5. Step 5: Solve for x
    x = 88,451,785.12/12,811.44
  6. Step 6: Final answer
    x = 6,904.13

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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.