Home / 13,088.12-19,631.70-3,728.05

Finding the Fourth Proportional to 13,088.12, 19,631.70 and 3,728.05

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Solution

The fourth proportional to 13,088.12, 19,631.70 and 3,728.05 is: 5,591.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,088.12 : 19,631.70 = 3,728.05 : x
  2. Step 2: Convert to fraction form
    13,088.12/19,631.70 = 3,728.05/x
  3. Step 3: Cross multiply
    13,088.12x = 19,631.70 × 3,728.05
  4. Step 4: Simplify right side
    13,088.12x = 73,187,910.11
  5. Step 5: Solve for x
    x = 73,187,910.11/13,088.12
  6. Step 6: Final answer
    x = 5,591.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.