Home / 8,765.42-13,148.14-2,191.60

Finding the Fourth Proportional to 8,765.42, 13,148.14 and 2,191.60

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Solution

The fourth proportional to 8,765.42, 13,148.14 and 2,191.60 is: 3,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.42 : 13,148.14 = 2,191.60 : x
  2. Step 2: Convert to fraction form
    8,765.42/13,148.14 = 2,191.60/x
  3. Step 3: Cross multiply
    8,765.42x = 13,148.14 × 2,191.60
  4. Step 4: Simplify right side
    8,765.42x = 28,815,463.62
  5. Step 5: Solve for x
    x = 28,815,463.62/8,765.42
  6. Step 6: Final answer
    x = 3,287.40

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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.