Home / 8,539.40-12,786.06-4,426.76

Finding the Fourth Proportional to 8,539.40, 12,786.06 and 4,426.76

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Solution

The fourth proportional to 8,539.40, 12,786.06 and 4,426.76 is: 6,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.40 : 12,786.06 = 4,426.76 : x
  2. Step 2: Convert to fraction form
    8,539.40/12,786.06 = 4,426.76/x
  3. Step 3: Cross multiply
    8,539.40x = 12,786.06 × 4,426.76
  4. Step 4: Simplify right side
    8,539.40x = 56,600,818.97
  5. Step 5: Solve for x
    x = 56,600,818.97/8,539.40
  6. Step 6: Final answer
    x = 6,628.20

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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.