Home / 7,777.14-11,665.47-4,480.02

Finding the Fourth Proportional to 7,777.14, 11,665.47 and 4,480.02

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Solution

The fourth proportional to 7,777.14, 11,665.47 and 4,480.02 is: 6,719.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.14 : 11,665.47 = 4,480.02 : x
  2. Step 2: Convert to fraction form
    7,777.14/11,665.47 = 4,480.02/x
  3. Step 3: Cross multiply
    7,777.14x = 11,665.47 × 4,480.02
  4. Step 4: Simplify right side
    7,777.14x = 52,261,538.91
  5. Step 5: Solve for x
    x = 52,261,538.91/7,777.14
  6. Step 6: Final answer
    x = 6,719.89

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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.