Home / 7,405.68-11,111.76-3,246.60

Finding the Fourth Proportional to 7,405.68, 11,111.76 and 3,246.60

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Solution

The fourth proportional to 7,405.68, 11,111.76 and 3,246.60 is: 4,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.68 : 11,111.76 = 3,246.60 : x
  2. Step 2: Convert to fraction form
    7,405.68/11,111.76 = 3,246.60/x
  3. Step 3: Cross multiply
    7,405.68x = 11,111.76 × 3,246.60
  4. Step 4: Simplify right side
    7,405.68x = 36,075,440.02
  5. Step 5: Solve for x
    x = 36,075,440.02/7,405.68
  6. Step 6: Final answer
    x = 4,871.32

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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.