Home / 12,779.43-19,197.08-9,105.27

Finding the Fourth Proportional to 12,779.43, 19,197.08 and 9,105.27

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Solution

The fourth proportional to 12,779.43, 19,197.08 and 9,105.27 is: 13,677.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.43 : 19,197.08 = 9,105.27 : x
  2. Step 2: Convert to fraction form
    12,779.43/19,197.08 = 9,105.27/x
  3. Step 3: Cross multiply
    12,779.43x = 19,197.08 × 9,105.27
  4. Step 4: Simplify right side
    12,779.43x = 174,794,596.61
  5. Step 5: Solve for x
    x = 174,794,596.61/12,779.43
  6. Step 6: Final answer
    x = 13,677.81

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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.