Home / 13,081.62-18,052.92-7,113.72

Finding the Fourth Proportional to 13,081.62, 18,052.92 and 7,113.72

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Solution

The fourth proportional to 13,081.62, 18,052.92 and 7,113.72 is: 9,817.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.62 : 18,052.92 = 7,113.72 : x
  2. Step 2: Convert to fraction form
    13,081.62/18,052.92 = 7,113.72/x
  3. Step 3: Cross multiply
    13,081.62x = 18,052.92 × 7,113.72
  4. Step 4: Simplify right side
    13,081.62x = 128,423,418.06
  5. Step 5: Solve for x
    x = 128,423,418.06/13,081.62
  6. Step 6: Final answer
    x = 9,817.09

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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.