Home / 8,956.40-13,405.82-4,785.98

Finding the Fourth Proportional to 8,956.40, 13,405.82 and 4,785.98

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Solution

The fourth proportional to 8,956.40, 13,405.82 and 4,785.98 is: 7,163.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.40 : 13,405.82 = 4,785.98 : x
  2. Step 2: Convert to fraction form
    8,956.40/13,405.82 = 4,785.98/x
  3. Step 3: Cross multiply
    8,956.40x = 13,405.82 × 4,785.98
  4. Step 4: Simplify right side
    8,956.40x = 64,159,986.40
  5. Step 5: Solve for x
    x = 64,159,986.40/8,956.40
  6. Step 6: Final answer
    x = 7,163.59

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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.