Home / 13,377.36-20,061.30-3,887.70

Finding the Fourth Proportional to 13,377.36, 20,061.30 and 3,887.70

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Solution

The fourth proportional to 13,377.36, 20,061.30 and 3,887.70 is: 5,830.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.36 : 20,061.30 = 3,887.70 : x
  2. Step 2: Convert to fraction form
    13,377.36/20,061.30 = 3,887.70/x
  3. Step 3: Cross multiply
    13,377.36x = 20,061.30 × 3,887.70
  4. Step 4: Simplify right side
    13,377.36x = 77,992,316.01
  5. Step 5: Solve for x
    x = 77,992,316.01/13,377.36
  6. Step 6: Final answer
    x = 5,830.17

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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.