Home / 15,857.32-21,887.03-9,146.97

Finding the Fourth Proportional to 15,857.32, 21,887.03 and 9,146.97

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Solution

The fourth proportional to 15,857.32, 21,887.03 and 9,146.97 is: 12,625.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,857.32 : 21,887.03 = 9,146.97 : x
  2. Step 2: Convert to fraction form
    15,857.32/21,887.03 = 9,146.97/x
  3. Step 3: Cross multiply
    15,857.32x = 21,887.03 × 9,146.97
  4. Step 4: Simplify right side
    15,857.32x = 200,200,006.80
  5. Step 5: Solve for x
    x = 200,200,006.80/15,857.32
  6. Step 6: Final answer
    x = 12,625.08

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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.