Home / 10,620.75-14,656.96-6,145.91

Finding the Fourth Proportional to 10,620.75, 14,656.96 and 6,145.91

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Solution

The fourth proportional to 10,620.75, 14,656.96 and 6,145.91 is: 8,481.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.75 : 14,656.96 = 6,145.91 : x
  2. Step 2: Convert to fraction form
    10,620.75/14,656.96 = 6,145.91/x
  3. Step 3: Cross multiply
    10,620.75x = 14,656.96 × 6,145.91
  4. Step 4: Simplify right side
    10,620.75x = 90,080,357.03
  5. Step 5: Solve for x
    x = 90,080,357.03/10,620.75
  6. Step 6: Final answer
    x = 8,481.54

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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.