Home / 8,620.14-12,930.27-3,426.03

Finding the Fourth Proportional to 8,620.14, 12,930.27 and 3,426.03

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Solution

The fourth proportional to 8,620.14, 12,930.27 and 3,426.03 is: 5,139.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.14 : 12,930.27 = 3,426.03 : x
  2. Step 2: Convert to fraction form
    8,620.14/12,930.27 = 3,426.03/x
  3. Step 3: Cross multiply
    8,620.14x = 12,930.27 × 3,426.03
  4. Step 4: Simplify right side
    8,620.14x = 44,299,492.93
  5. Step 5: Solve for x
    x = 44,299,492.93/8,620.14
  6. Step 6: Final answer
    x = 5,139.07

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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.