Home / 13,173.84-18,177.90-7,431.04

Finding the Fourth Proportional to 13,173.84, 18,177.90 and 7,431.04

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Solution

The fourth proportional to 13,173.84, 18,177.90 and 7,431.04 is: 10,253.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.84 : 18,177.90 = 7,431.04 : x
  2. Step 2: Convert to fraction form
    13,173.84/18,177.90 = 7,431.04/x
  3. Step 3: Cross multiply
    13,173.84x = 18,177.90 × 7,431.04
  4. Step 4: Simplify right side
    13,173.84x = 135,080,702.02
  5. Step 5: Solve for x
    x = 135,080,702.02/13,173.84
  6. Step 6: Final answer
    x = 10,253.71

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1.5x scale

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.