Home / 12,792.36-19,190.59-5,397.91

Finding the Fourth Proportional to 12,792.36, 19,190.59 and 5,397.91

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Solution

The fourth proportional to 12,792.36, 19,190.59 and 5,397.91 is: 8,097.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.36 : 19,190.59 = 5,397.91 : x
  2. Step 2: Convert to fraction form
    12,792.36/19,190.59 = 5,397.91/x
  3. Step 3: Cross multiply
    12,792.36x = 19,190.59 × 5,397.91
  4. Step 4: Simplify right side
    12,792.36x = 103,589,077.67
  5. Step 5: Solve for x
    x = 103,589,077.67/12,792.36
  6. Step 6: Final answer
    x = 8,097.73

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1.5x scale

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.