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Finding the Fourth Proportional to 8,648.07, 12,969.36 and 2,803.29

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Solution

The fourth proportional to 8,648.07, 12,969.36 and 2,803.29 is: 4,204.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,648.07 : 12,969.36 = 2,803.29 : x
  2. Step 2: Convert to fraction form
    8,648.07/12,969.36 = 2,803.29/x
  3. Step 3: Cross multiply
    8,648.07x = 12,969.36 × 2,803.29
  4. Step 4: Simplify right side
    8,648.07x = 36,356,877.19
  5. Step 5: Solve for x
    x = 36,356,877.19/8,648.07
  6. Step 6: Final answer
    x = 4,204.05

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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.