Home / 10,656.54-15,987.09-3,260.75

Finding the Fourth Proportional to 10,656.54, 15,987.09 and 3,260.75

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Solution

The fourth proportional to 10,656.54, 15,987.09 and 3,260.75 is: 4,891.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.54 : 15,987.09 = 3,260.75 : x
  2. Step 2: Convert to fraction form
    10,656.54/15,987.09 = 3,260.75/x
  3. Step 3: Cross multiply
    10,656.54x = 15,987.09 × 3,260.75
  4. Step 4: Simplify right side
    10,656.54x = 52,129,836.01
  5. Step 5: Solve for x
    x = 52,129,836.01/10,656.54
  6. Step 6: Final answer
    x = 4,891.82

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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.