Home / 8,170.40-12,255.52-2,624.32

Finding the Fourth Proportional to 8,170.40, 12,255.52 and 2,624.32

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Solution

The fourth proportional to 8,170.40, 12,255.52 and 2,624.32 is: 3,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.40 : 12,255.52 = 2,624.32 : x
  2. Step 2: Convert to fraction form
    8,170.40/12,255.52 = 2,624.32/x
  3. Step 3: Cross multiply
    8,170.40x = 12,255.52 × 2,624.32
  4. Step 4: Simplify right side
    8,170.40x = 32,162,406.25
  5. Step 5: Solve for x
    x = 32,162,406.25/8,170.40
  6. Step 6: Final answer
    x = 3,936.45

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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.