Home / 13,185.90-19,779.05-4,301.19

Finding the Fourth Proportional to 13,185.90, 19,779.05 and 4,301.19

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Solution

The fourth proportional to 13,185.90, 19,779.05 and 4,301.19 is: 6,451.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.90 : 19,779.05 = 4,301.19 : x
  2. Step 2: Convert to fraction form
    13,185.90/19,779.05 = 4,301.19/x
  3. Step 3: Cross multiply
    13,185.90x = 19,779.05 × 4,301.19
  4. Step 4: Simplify right side
    13,185.90x = 85,073,452.07
  5. Step 5: Solve for x
    x = 85,073,452.07/13,185.90
  6. Step 6: Final answer
    x = 6,451.85

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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.