Home / 9,177.12-12,664.02-5,198.15

Finding the Fourth Proportional to 9,177.12, 12,664.02 and 5,198.15

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Solution

The fourth proportional to 9,177.12, 12,664.02 and 5,198.15 is: 7,173.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.12 : 12,664.02 = 5,198.15 : x
  2. Step 2: Convert to fraction form
    9,177.12/12,664.02 = 5,198.15/x
  3. Step 3: Cross multiply
    9,177.12x = 12,664.02 × 5,198.15
  4. Step 4: Simplify right side
    9,177.12x = 65,829,507.22
  5. Step 5: Solve for x
    x = 65,829,507.22/9,177.12
  6. Step 6: Final answer
    x = 7,173.22

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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.