Home / 8,160.08-12,240.16-2,966.40

Finding the Fourth Proportional to 8,160.08, 12,240.16 and 2,966.40

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Solution

The fourth proportional to 8,160.08, 12,240.16 and 2,966.40 is: 4,449.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.08 : 12,240.16 = 2,966.40 : x
  2. Step 2: Convert to fraction form
    8,160.08/12,240.16 = 2,966.40/x
  3. Step 3: Cross multiply
    8,160.08x = 12,240.16 × 2,966.40
  4. Step 4: Simplify right side
    8,160.08x = 36,309,210.62
  5. Step 5: Solve for x
    x = 36,309,210.62/8,160.08
  6. Step 6: Final answer
    x = 4,449.61

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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.