Home / 9,521.36-13,126.89-7,813.64

Finding the Fourth Proportional to 9,521.36, 13,126.89 and 7,813.64

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Solution

The fourth proportional to 9,521.36, 13,126.89 and 7,813.64 is: 10,772.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521.36 : 13,126.89 = 7,813.64 : x
  2. Step 2: Convert to fraction form
    9,521.36/13,126.89 = 7,813.64/x
  3. Step 3: Cross multiply
    9,521.36x = 13,126.89 × 7,813.64
  4. Step 4: Simplify right side
    9,521.36x = 102,568,792.78
  5. Step 5: Solve for x
    x = 102,568,792.78/9,521.36
  6. Step 6: Final answer
    x = 10,772.49

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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.