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Finding the Fourth Proportional to 8,919, 13,368.06 and 3,070.44

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Solution

The fourth proportional to 8,919, 13,368.06 and 3,070.44 is: 4,602.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919 : 13,368.06 = 3,070.44 : x
  2. Step 2: Convert to fraction form
    8,919/13,368.06 = 3,070.44/x
  3. Step 3: Cross multiply
    8,919x = 13,368.06 × 3,070.44
  4. Step 4: Simplify right side
    8,919x = 41,045,826.15
  5. Step 5: Solve for x
    x = 41,045,826.15/8,919
  6. Step 6: Final answer
    x = 4,602.07

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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.