Home / 18,117.40-27,173.19-4,966.72

Finding the Fourth Proportional to 18,117.40, 27,173.19 and 4,966.72

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Solution

The fourth proportional to 18,117.40, 27,173.19 and 4,966.72 is: 7,449.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.40 : 27,173.19 = 4,966.72 : x
  2. Step 2: Convert to fraction form
    18,117.40/27,173.19 = 4,966.72/x
  3. Step 3: Cross multiply
    18,117.40x = 27,173.19 × 4,966.72
  4. Step 4: Simplify right side
    18,117.40x = 134,961,626.24
  5. Step 5: Solve for x
    x = 134,961,626.24/18,117.40
  6. Step 6: Final answer
    x = 7,449.28

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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.