Home / 13,821.31-19,056.36-11,693.17

Finding the Fourth Proportional to 13,821.31, 19,056.36 and 11,693.17

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Solution

The fourth proportional to 13,821.31, 19,056.36 and 11,693.17 is: 16,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.31 : 19,056.36 = 11,693.17 : x
  2. Step 2: Convert to fraction form
    13,821.31/19,056.36 = 11,693.17/x
  3. Step 3: Cross multiply
    13,821.31x = 19,056.36 × 11,693.17
  4. Step 4: Simplify right side
    13,821.31x = 222,829,257.06
  5. Step 5: Solve for x
    x = 222,829,257.06/13,821.31
  6. Step 6: Final answer
    x = 16,122.15

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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.