Home / 13,180.36-19,759.38-5,779.21

Finding the Fourth Proportional to 13,180.36, 19,759.38 and 5,779.21

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Solution

The fourth proportional to 13,180.36, 19,759.38 and 5,779.21 is: 8,663.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180.36 : 19,759.38 = 5,779.21 : x
  2. Step 2: Convert to fraction form
    13,180.36/19,759.38 = 5,779.21/x
  3. Step 3: Cross multiply
    13,180.36x = 19,759.38 × 5,779.21
  4. Step 4: Simplify right side
    13,180.36x = 114,193,606.49
  5. Step 5: Solve for x
    x = 114,193,606.49/13,180.36
  6. Step 6: Final answer
    x = 8,663.92

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1.5x scale

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.