Home / 15,866.09-21,892.91-8,792.49

Finding the Fourth Proportional to 15,866.09, 21,892.91 and 8,792.49

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Solution

The fourth proportional to 15,866.09, 21,892.91 and 8,792.49 is: 12,132.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,866.09 : 21,892.91 = 8,792.49 : x
  2. Step 2: Convert to fraction form
    15,866.09/21,892.91 = 8,792.49/x
  3. Step 3: Cross multiply
    15,866.09x = 21,892.91 × 8,792.49
  4. Step 4: Simplify right side
    15,866.09x = 192,493,268.96
  5. Step 5: Solve for x
    x = 192,493,268.96/15,866.09
  6. Step 6: Final answer
    x = 12,132.37

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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.