Home / 8,635.07-12,949.86-2,790.29

Finding the Fourth Proportional to 8,635.07, 12,949.86 and 2,790.29

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Solution

The fourth proportional to 8,635.07, 12,949.86 and 2,790.29 is: 4,184.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.07 : 12,949.86 = 2,790.29 : x
  2. Step 2: Convert to fraction form
    8,635.07/12,949.86 = 2,790.29/x
  3. Step 3: Cross multiply
    8,635.07x = 12,949.86 × 2,790.29
  4. Step 4: Simplify right side
    8,635.07x = 36,133,864.86
  5. Step 5: Solve for x
    x = 36,133,864.86/8,635.07
  6. Step 6: Final answer
    x = 4,184.55

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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.