Home / 15,895.74-21,936.12-8,822.16

Finding the Fourth Proportional to 15,895.74, 21,936.12 and 8,822.16

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Solution

The fourth proportional to 15,895.74, 21,936.12 and 8,822.16 is: 12,174.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,895.74 : 21,936.12 = 8,822.16 : x
  2. Step 2: Convert to fraction form
    15,895.74/21,936.12 = 8,822.16/x
  3. Step 3: Cross multiply
    15,895.74x = 21,936.12 × 8,822.16
  4. Step 4: Simplify right side
    15,895.74x = 193,523,960.42
  5. Step 5: Solve for x
    x = 193,523,960.42/15,895.74
  6. Step 6: Final answer
    x = 12,174.58

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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.