Home / 13,186.40-19,779.80-4,301.69

Finding the Fourth Proportional to 13,186.40, 19,779.80 and 4,301.69

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Solution

The fourth proportional to 13,186.40, 19,779.80 and 4,301.69 is: 6,452.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.40 : 19,779.80 = 4,301.69 : x
  2. Step 2: Convert to fraction form
    13,186.40/19,779.80 = 4,301.69/x
  3. Step 3: Cross multiply
    13,186.40x = 19,779.80 × 4,301.69
  4. Step 4: Simplify right side
    13,186.40x = 85,086,567.86
  5. Step 5: Solve for x
    x = 85,086,567.86/13,186.40
  6. Step 6: Final answer
    x = 6,452.60

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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.