Home / 15,857.24-21,884.01-9,143.31

Finding the Fourth Proportional to 15,857.24, 21,884.01 and 9,143.31

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Solution

The fourth proportional to 15,857.24, 21,884.01 and 9,143.31 is: 12,618.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,857.24 : 21,884.01 = 9,143.31 : x
  2. Step 2: Convert to fraction form
    15,857.24/21,884.01 = 9,143.31/x
  3. Step 3: Cross multiply
    15,857.24x = 21,884.01 × 9,143.31
  4. Step 4: Simplify right side
    15,857.24x = 200,092,335.25
  5. Step 5: Solve for x
    x = 200,092,335.25/15,857.24
  6. Step 6: Final answer
    x = 12,618.36

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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.