Home / 15,895.04-21,936.06-8,821.34

Finding the Fourth Proportional to 15,895.04, 21,936.06 and 8,821.34

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Solution

The fourth proportional to 15,895.04, 21,936.06 and 8,821.34 is: 12,173.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,895.04 : 21,936.06 = 8,821.34 : x
  2. Step 2: Convert to fraction form
    15,895.04/21,936.06 = 8,821.34/x
  3. Step 3: Cross multiply
    15,895.04x = 21,936.06 × 8,821.34
  4. Step 4: Simplify right side
    15,895.04x = 193,505,443.52
  5. Step 5: Solve for x
    x = 193,505,443.52/15,895.04
  6. Step 6: Final answer
    x = 12,173.95

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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.