Home / 8,509.36-12,756.26-3,579.35

Finding the Fourth Proportional to 8,509.36, 12,756.26 and 3,579.35

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Solution

The fourth proportional to 8,509.36, 12,756.26 and 3,579.35 is: 5,365.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,509.36 : 12,756.26 = 3,579.35 : x
  2. Step 2: Convert to fraction form
    8,509.36/12,756.26 = 3,579.35/x
  3. Step 3: Cross multiply
    8,509.36x = 12,756.26 × 3,579.35
  4. Step 4: Simplify right side
    8,509.36x = 45,659,037.55
  5. Step 5: Solve for x
    x = 45,659,037.55/8,509.36
  6. Step 6: Final answer
    x = 5,365.74

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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.