Home / 10,619.45-14,653.71-6,311.98

Finding the Fourth Proportional to 10,619.45, 14,653.71 and 6,311.98

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Solution

The fourth proportional to 10,619.45, 14,653.71 and 6,311.98 is: 8,709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.45 : 14,653.71 = 6,311.98 : x
  2. Step 2: Convert to fraction form
    10,619.45/14,653.71 = 6,311.98/x
  3. Step 3: Cross multiply
    10,619.45x = 14,653.71 × 6,311.98
  4. Step 4: Simplify right side
    10,619.45x = 92,493,924.45
  5. Step 5: Solve for x
    x = 92,493,924.45/10,619.45
  6. Step 6: Final answer
    x = 8,709.86

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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.