Home / 11,175.07-15,424.70-6,397.69

Finding the Fourth Proportional to 11,175.07, 15,424.70 and 6,397.69

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Solution

The fourth proportional to 11,175.07, 15,424.70 and 6,397.69 is: 8,830.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.07 : 15,424.70 = 6,397.69 : x
  2. Step 2: Convert to fraction form
    11,175.07/15,424.70 = 6,397.69/x
  3. Step 3: Cross multiply
    11,175.07x = 15,424.70 × 6,397.69
  4. Step 4: Simplify right side
    11,175.07x = 98,682,448.94
  5. Step 5: Solve for x
    x = 98,682,448.94/11,175.07
  6. Step 6: Final answer
    x = 8,830.59

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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.