Home / 15,622.94-21,553.49-9,644.22

Finding the Fourth Proportional to 15,622.94, 21,553.49 and 9,644.22

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Solution

The fourth proportional to 15,622.94, 21,553.49 and 9,644.22 is: 13,305.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.94 : 21,553.49 = 9,644.22 : x
  2. Step 2: Convert to fraction form
    15,622.94/21,553.49 = 9,644.22/x
  3. Step 3: Cross multiply
    15,622.94x = 21,553.49 × 9,644.22
  4. Step 4: Simplify right side
    15,622.94x = 207,866,551.11
  5. Step 5: Solve for x
    x = 207,866,551.11/15,622.94
  6. Step 6: Final answer
    x = 13,305.22

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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.