Home / 11,421.60-17,132.40-4,845.60

Finding the Fourth Proportional to 11,421.60, 17,132.40 and 4,845.60

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Solution

The fourth proportional to 11,421.60, 17,132.40 and 4,845.60 is: 7,268.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,421.60 : 17,132.40 = 4,845.60 : x
  2. Step 2: Convert to fraction form
    11,421.60/17,132.40 = 4,845.60/x
  3. Step 3: Cross multiply
    11,421.60x = 17,132.40 × 4,845.60
  4. Step 4: Simplify right side
    11,421.60x = 83,016,757.44
  5. Step 5: Solve for x
    x = 83,016,757.44/11,421.60
  6. Step 6: Final answer
    x = 7,268.40

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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.