Home / 8,635.32-12,949.74-2,790.36

Finding the Fourth Proportional to 8,635.32, 12,949.74 and 2,790.36

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Solution

The fourth proportional to 8,635.32, 12,949.74 and 2,790.36 is: 4,184.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.32 : 12,949.74 = 2,790.36 : x
  2. Step 2: Convert to fraction form
    8,635.32/12,949.74 = 2,790.36/x
  3. Step 3: Cross multiply
    8,635.32x = 12,949.74 × 2,790.36
  4. Step 4: Simplify right side
    8,635.32x = 36,134,436.51
  5. Step 5: Solve for x
    x = 36,134,436.51/8,635.32
  6. Step 6: Final answer
    x = 4,184.49

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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.