Home / 13,396.97-20,079.33-4,956.74

Finding the Fourth Proportional to 13,396.97, 20,079.33 and 4,956.74

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Solution

The fourth proportional to 13,396.97, 20,079.33 and 4,956.74 is: 7,429.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,396.97 : 20,079.33 = 4,956.74 : x
  2. Step 2: Convert to fraction form
    13,396.97/20,079.33 = 4,956.74/x
  3. Step 3: Cross multiply
    13,396.97x = 20,079.33 × 4,956.74
  4. Step 4: Simplify right side
    13,396.97x = 99,528,080.77
  5. Step 5: Solve for x
    x = 99,528,080.77/13,396.97
  6. Step 6: Final answer
    x = 7,429.15

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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.