Home / 13,905.94-19,174.82-8,862.17

Finding the Fourth Proportional to 13,905.94, 19,174.82 and 8,862.17

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Solution

The fourth proportional to 13,905.94, 19,174.82 and 8,862.17 is: 12,220.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.94 : 19,174.82 = 8,862.17 : x
  2. Step 2: Convert to fraction form
    13,905.94/19,174.82 = 8,862.17/x
  3. Step 3: Cross multiply
    13,905.94x = 19,174.82 × 8,862.17
  4. Step 4: Simplify right side
    13,905.94x = 169,930,470.25
  5. Step 5: Solve for x
    x = 169,930,470.25/13,905.94
  6. Step 6: Final answer
    x = 12,220.00

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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.