Home / 10,519.08-15,777.09-3,122.16

Finding the Fourth Proportional to 10,519.08, 15,777.09 and 3,122.16

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Solution

The fourth proportional to 10,519.08, 15,777.09 and 3,122.16 is: 4,682.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.08 : 15,777.09 = 3,122.16 : x
  2. Step 2: Convert to fraction form
    10,519.08/15,777.09 = 3,122.16/x
  3. Step 3: Cross multiply
    10,519.08x = 15,777.09 × 3,122.16
  4. Step 4: Simplify right side
    10,519.08x = 49,258,599.31
  5. Step 5: Solve for x
    x = 49,258,599.31/10,519.08
  6. Step 6: Final answer
    x = 4,682.79

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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.