Home / 8,570.45-12,856.62-2,725.69

Finding the Fourth Proportional to 8,570.45, 12,856.62 and 2,725.69

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Solution

The fourth proportional to 8,570.45, 12,856.62 and 2,725.69 is: 4,088.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,570.45 : 12,856.62 = 2,725.69 : x
  2. Step 2: Convert to fraction form
    8,570.45/12,856.62 = 2,725.69/x
  3. Step 3: Cross multiply
    8,570.45x = 12,856.62 × 2,725.69
  4. Step 4: Simplify right side
    8,570.45x = 35,043,160.57
  5. Step 5: Solve for x
    x = 35,043,160.57/8,570.45
  6. Step 6: Final answer
    x = 4,088.84

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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.