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Finding the Fourth Proportional to 10,650.54, 14,700.25 and 6,620.41

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Solution

The fourth proportional to 10,650.54, 14,700.25 and 6,620.41 is: 9,137.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,650.54 : 14,700.25 = 6,620.41 : x
  2. Step 2: Convert to fraction form
    10,650.54/14,700.25 = 6,620.41/x
  3. Step 3: Cross multiply
    10,650.54x = 14,700.25 × 6,620.41
  4. Step 4: Simplify right side
    10,650.54x = 97,321,698.65
  5. Step 5: Solve for x
    x = 97,321,698.65/10,650.54
  6. Step 6: Final answer
    x = 9,137.72

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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.