Home / 10,656.45-15,984.71-3,260.88

Finding the Fourth Proportional to 10,656.45, 15,984.71 and 3,260.88

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Solution

The fourth proportional to 10,656.45, 15,984.71 and 3,260.88 is: 4,891.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.45 : 15,984.71 = 3,260.88 : x
  2. Step 2: Convert to fraction form
    10,656.45/15,984.71 = 3,260.88/x
  3. Step 3: Cross multiply
    10,656.45x = 15,984.71 × 3,260.88
  4. Step 4: Simplify right side
    10,656.45x = 52,124,221.14
  5. Step 5: Solve for x
    x = 52,124,221.14/10,656.45
  6. Step 6: Final answer
    x = 4,891.33

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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.