Home / 8,445.12-12,667.20-2,601.60

Finding the Fourth Proportional to 8,445.12, 12,667.20 and 2,601.60

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Solution

The fourth proportional to 8,445.12, 12,667.20 and 2,601.60 is: 3,902.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.12 : 12,667.20 = 2,601.60 : x
  2. Step 2: Convert to fraction form
    8,445.12/12,667.20 = 2,601.60/x
  3. Step 3: Cross multiply
    8,445.12x = 12,667.20 × 2,601.60
  4. Step 4: Simplify right side
    8,445.12x = 32,954,987.52
  5. Step 5: Solve for x
    x = 32,954,987.52/8,445.12
  6. Step 6: Final answer
    x = 3,902.25

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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.