Home / 8,181.60-11,291.88-4,644.08

Finding the Fourth Proportional to 8,181.60, 11,291.88 and 4,644.08

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Solution

The fourth proportional to 8,181.60, 11,291.88 and 4,644.08 is: 6,409.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.60 : 11,291.88 = 4,644.08 : x
  2. Step 2: Convert to fraction form
    8,181.60/11,291.88 = 4,644.08/x
  3. Step 3: Cross multiply
    8,181.60x = 11,291.88 × 4,644.08
  4. Step 4: Simplify right side
    8,181.60x = 52,440,394.07
  5. Step 5: Solve for x
    x = 52,440,394.07/8,181.60
  6. Step 6: Final answer
    x = 6,409.55

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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.