Home / 8,129.06-12,195.29-4,620.68

Finding the Fourth Proportional to 8,129.06, 12,195.29 and 4,620.68

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Solution

The fourth proportional to 8,129.06, 12,195.29 and 4,620.68 is: 6,931.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.06 : 12,195.29 = 4,620.68 : x
  2. Step 2: Convert to fraction form
    8,129.06/12,195.29 = 4,620.68/x
  3. Step 3: Cross multiply
    8,129.06x = 12,195.29 × 4,620.68
  4. Step 4: Simplify right side
    8,129.06x = 56,350,532.60
  5. Step 5: Solve for x
    x = 56,350,532.60/8,129.06
  6. Step 6: Final answer
    x = 6,931.99

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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.