Home / 7,812.08-11,722.44-3,655.52

Finding the Fourth Proportional to 7,812.08, 11,722.44 and 3,655.52

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Solution

The fourth proportional to 7,812.08, 11,722.44 and 3,655.52 is: 5,485.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.08 : 11,722.44 = 3,655.52 : x
  2. Step 2: Convert to fraction form
    7,812.08/11,722.44 = 3,655.52/x
  3. Step 3: Cross multiply
    7,812.08x = 11,722.44 × 3,655.52
  4. Step 4: Simplify right side
    7,812.08x = 42,851,613.87
  5. Step 5: Solve for x
    x = 42,851,613.87/7,812.08
  6. Step 6: Final answer
    x = 5,485.30

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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.