Home / 13,750.40-20,625.48-4,982

Finding the Fourth Proportional to 13,750.40, 20,625.48 and 4,982

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Solution

The fourth proportional to 13,750.40, 20,625.48 and 4,982 is: 7,472.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.40 : 20,625.48 = 4,982 : x
  2. Step 2: Convert to fraction form
    13,750.40/20,625.48 = 4,982/x
  3. Step 3: Cross multiply
    13,750.40x = 20,625.48 × 4,982
  4. Step 4: Simplify right side
    13,750.40x = 102,756,141.36
  5. Step 5: Solve for x
    x = 102,756,141.36/13,750.40
  6. Step 6: Final answer
    x = 7,472.96

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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.