Home / 7,409.19-11,116.89-3,247.05

Finding the Fourth Proportional to 7,409.19, 11,116.89 and 3,247.05

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Solution

The fourth proportional to 7,409.19, 11,116.89 and 3,247.05 is: 4,871.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.19 : 11,116.89 = 3,247.05 : x
  2. Step 2: Convert to fraction form
    7,409.19/11,116.89 = 3,247.05/x
  3. Step 3: Cross multiply
    7,409.19x = 11,116.89 × 3,247.05
  4. Step 4: Simplify right side
    7,409.19x = 36,097,097.67
  5. Step 5: Solve for x
    x = 36,097,097.67/7,409.19
  6. Step 6: Final answer
    x = 4,871.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.