Home / 11,245.40-15,518.60-6,277.40

Finding the Fourth Proportional to 11,245.40, 15,518.60 and 6,277.40

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Solution

The fourth proportional to 11,245.40, 15,518.60 and 6,277.40 is: 8,662.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.40 : 15,518.60 = 6,277.40 : x
  2. Step 2: Convert to fraction form
    11,245.40/15,518.60 = 6,277.40/x
  3. Step 3: Cross multiply
    11,245.40x = 15,518.60 × 6,277.40
  4. Step 4: Simplify right side
    11,245.40x = 97,416,459.64
  5. Step 5: Solve for x
    x = 97,416,459.64/11,245.40
  6. Step 6: Final answer
    x = 8,662.78

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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.