Home / 8,786.26-12,125.40-4,807.72

Finding the Fourth Proportional to 8,786.26, 12,125.40 and 4,807.72

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Solution

The fourth proportional to 8,786.26, 12,125.40 and 4,807.72 is: 6,634.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.26 : 12,125.40 = 4,807.72 : x
  2. Step 2: Convert to fraction form
    8,786.26/12,125.40 = 4,807.72/x
  3. Step 3: Cross multiply
    8,786.26x = 12,125.40 × 4,807.72
  4. Step 4: Simplify right side
    8,786.26x = 58,295,528.09
  5. Step 5: Solve for x
    x = 58,295,528.09/8,786.26
  6. Step 6: Final answer
    x = 6,634.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.