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Finding the Fourth Proportional to 8,676.80, 13,014.90 and 2,436.80

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Solution

The fourth proportional to 8,676.80, 13,014.90 and 2,436.80 is: 3,655.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.80 : 13,014.90 = 2,436.80 : x
  2. Step 2: Convert to fraction form
    8,676.80/13,014.90 = 2,436.80/x
  3. Step 3: Cross multiply
    8,676.80x = 13,014.90 × 2,436.80
  4. Step 4: Simplify right side
    8,676.80x = 31,714,708.32
  5. Step 5: Solve for x
    x = 31,714,708.32/8,676.80
  6. Step 6: Final answer
    x = 3,655.12

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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.