Home / 8,106.20-12,155.08-5,473.60

Finding the Fourth Proportional to 8,106.20, 12,155.08 and 5,473.60

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Solution

The fourth proportional to 8,106.20, 12,155.08 and 5,473.60 is: 8,207.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.20 : 12,155.08 = 5,473.60 : x
  2. Step 2: Convert to fraction form
    8,106.20/12,155.08 = 5,473.60/x
  3. Step 3: Cross multiply
    8,106.20x = 12,155.08 × 5,473.60
  4. Step 4: Simplify right side
    8,106.20x = 66,532,045.89
  5. Step 5: Solve for x
    x = 66,532,045.89/8,106.20
  6. Step 6: Final answer
    x = 8,207.55

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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.