Home / 8,436.58-12,659.44-3,509.62

Finding the Fourth Proportional to 8,436.58, 12,659.44 and 3,509.62

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Solution

The fourth proportional to 8,436.58, 12,659.44 and 3,509.62 is: 5,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.58 : 12,659.44 = 3,509.62 : x
  2. Step 2: Convert to fraction form
    8,436.58/12,659.44 = 3,509.62/x
  3. Step 3: Cross multiply
    8,436.58x = 12,659.44 × 3,509.62
  4. Step 4: Simplify right side
    8,436.58x = 44,429,823.81
  5. Step 5: Solve for x
    x = 44,429,823.81/8,436.58
  6. Step 6: Final answer
    x = 5,266.33

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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.