Home / 8,475.86-12,711.36-2,928.98

Finding the Fourth Proportional to 8,475.86, 12,711.36 and 2,928.98

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Solution

The fourth proportional to 8,475.86, 12,711.36 and 2,928.98 is: 4,392.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.86 : 12,711.36 = 2,928.98 : x
  2. Step 2: Convert to fraction form
    8,475.86/12,711.36 = 2,928.98/x
  3. Step 3: Cross multiply
    8,475.86x = 12,711.36 × 2,928.98
  4. Step 4: Simplify right side
    8,475.86x = 37,231,361.97
  5. Step 5: Solve for x
    x = 37,231,361.97/8,475.86
  6. Step 6: Final answer
    x = 4,392.63

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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.