Home / 13,473.60-18,590.40-8,167.20

Finding the Fourth Proportional to 13,473.60, 18,590.40 and 8,167.20

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Solution

The fourth proportional to 13,473.60, 18,590.40 and 8,167.20 is: 11,268.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,473.60 : 18,590.40 = 8,167.20 : x
  2. Step 2: Convert to fraction form
    13,473.60/18,590.40 = 8,167.20/x
  3. Step 3: Cross multiply
    13,473.60x = 18,590.40 × 8,167.20
  4. Step 4: Simplify right side
    13,473.60x = 151,831,514.88
  5. Step 5: Solve for x
    x = 151,831,514.88/13,473.60
  6. Step 6: Final answer
    x = 11,268.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.