Home / 13,901.53-19,188.79-8,450.58

Finding the Fourth Proportional to 13,901.53, 19,188.79 and 8,450.58

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Solution

The fourth proportional to 13,901.53, 19,188.79 and 8,450.58 is: 11,664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,901.53 : 19,188.79 = 8,450.58 : x
  2. Step 2: Convert to fraction form
    13,901.53/19,188.79 = 8,450.58/x
  3. Step 3: Cross multiply
    13,901.53x = 19,188.79 × 8,450.58
  4. Step 4: Simplify right side
    13,901.53x = 162,156,359.89
  5. Step 5: Solve for x
    x = 162,156,359.89/13,901.53
  6. Step 6: Final answer
    x = 11,664.64

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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.