Home / 8,130.08-12,196.92-2,585.12

Finding the Fourth Proportional to 8,130.08, 12,196.92 and 2,585.12

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Solution

The fourth proportional to 8,130.08, 12,196.92 and 2,585.12 is: 3,878.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.08 : 12,196.92 = 2,585.12 : x
  2. Step 2: Convert to fraction form
    8,130.08/12,196.92 = 2,585.12/x
  3. Step 3: Cross multiply
    8,130.08x = 12,196.92 × 2,585.12
  4. Step 4: Simplify right side
    8,130.08x = 31,530,501.83
  5. Step 5: Solve for x
    x = 31,530,501.83/8,130.08
  6. Step 6: Final answer
    x = 3,878.25

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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.