Home / 13,779.72-20,650.98-7,530.33

Finding the Fourth Proportional to 13,779.72, 20,650.98 and 7,530.33

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Solution

The fourth proportional to 13,779.72, 20,650.98 and 7,530.33 is: 11,285.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779.72 : 20,650.98 = 7,530.33 : x
  2. Step 2: Convert to fraction form
    13,779.72/20,650.98 = 7,530.33/x
  3. Step 3: Cross multiply
    13,779.72x = 20,650.98 × 7,530.33
  4. Step 4: Simplify right side
    13,779.72x = 155,508,694.22
  5. Step 5: Solve for x
    x = 155,508,694.22/13,779.72
  6. Step 6: Final answer
    x = 11,285.33

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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.