Home / 13,110.68-19,666.80-3,749.99

Finding the Fourth Proportional to 13,110.68, 19,666.80 and 3,749.99

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Solution

The fourth proportional to 13,110.68, 19,666.80 and 3,749.99 is: 5,625.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.68 : 19,666.80 = 3,749.99 : x
  2. Step 2: Convert to fraction form
    13,110.68/19,666.80 = 3,749.99/x
  3. Step 3: Cross multiply
    13,110.68x = 19,666.80 × 3,749.99
  4. Step 4: Simplify right side
    13,110.68x = 73,750,205.00
  5. Step 5: Solve for x
    x = 73,750,205.00/13,110.68
  6. Step 6: Final answer
    x = 5,625.20

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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.