Home / 8,459.24-12,688.75-3,460.56

Finding the Fourth Proportional to 8,459.24, 12,688.75 and 3,460.56

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Solution

The fourth proportional to 8,459.24, 12,688.75 and 3,460.56 is: 5,190.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.24 : 12,688.75 = 3,460.56 : x
  2. Step 2: Convert to fraction form
    8,459.24/12,688.75 = 3,460.56/x
  3. Step 3: Cross multiply
    8,459.24x = 12,688.75 × 3,460.56
  4. Step 4: Simplify right side
    8,459.24x = 43,910,137.44
  5. Step 5: Solve for x
    x = 43,910,137.44/8,459.24
  6. Step 6: Final answer
    x = 5,190.79

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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.