Home / 8,140.39-12,210.58-2,595.43

Finding the Fourth Proportional to 8,140.39, 12,210.58 and 2,595.43

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Solution

The fourth proportional to 8,140.39, 12,210.58 and 2,595.43 is: 3,893.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.39 : 12,210.58 = 2,595.43 : x
  2. Step 2: Convert to fraction form
    8,140.39/12,210.58 = 2,595.43/x
  3. Step 3: Cross multiply
    8,140.39x = 12,210.58 × 2,595.43
  4. Step 4: Simplify right side
    8,140.39x = 31,691,705.65
  5. Step 5: Solve for x
    x = 31,691,705.65/8,140.39
  6. Step 6: Final answer
    x = 3,893.14

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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.