Home / 14,410.77-21,575.40-7,640.94

Finding the Fourth Proportional to 14,410.77, 21,575.40 and 7,640.94

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Solution

The fourth proportional to 14,410.77, 21,575.40 and 7,640.94 is: 11,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,410.77 : 21,575.40 = 7,640.94 : x
  2. Step 2: Convert to fraction form
    14,410.77/21,575.40 = 7,640.94/x
  3. Step 3: Cross multiply
    14,410.77x = 21,575.40 × 7,640.94
  4. Step 4: Simplify right side
    14,410.77x = 164,856,336.88
  5. Step 5: Solve for x
    x = 164,856,336.88/14,410.77
  6. Step 6: Final answer
    x = 11,439.80

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1.5x scale

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.