Home / 8,867.40-12,236.04-5,091.60

Finding the Fourth Proportional to 8,867.40, 12,236.04 and 5,091.60

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Solution

The fourth proportional to 8,867.40, 12,236.04 and 5,091.60 is: 7,025.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.40 : 12,236.04 = 5,091.60 : x
  2. Step 2: Convert to fraction form
    8,867.40/12,236.04 = 5,091.60/x
  3. Step 3: Cross multiply
    8,867.40x = 12,236.04 × 5,091.60
  4. Step 4: Simplify right side
    8,867.40x = 62,301,021.26
  5. Step 5: Solve for x
    x = 62,301,021.26/8,867.40
  6. Step 6: Final answer
    x = 7,025.85

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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.