Home / 11,245.12-15,518.40-6,277.12

Finding the Fourth Proportional to 11,245.12, 15,518.40 and 6,277.12

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Solution

The fourth proportional to 11,245.12, 15,518.40 and 6,277.12 is: 8,662.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.12 : 15,518.40 = 6,277.12 : x
  2. Step 2: Convert to fraction form
    11,245.12/15,518.40 = 6,277.12/x
  3. Step 3: Cross multiply
    11,245.12x = 15,518.40 × 6,277.12
  4. Step 4: Simplify right side
    11,245.12x = 97,410,859.01
  5. Step 5: Solve for x
    x = 97,410,859.01/11,245.12
  6. Step 6: Final answer
    x = 8,662.50

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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.