Home / 19,779.64-29,669.58-8,092.86

Finding the Fourth Proportional to 19,779.64, 29,669.58 and 8,092.86

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Solution

The fourth proportional to 19,779.64, 29,669.58 and 8,092.86 is: 12,139.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.64 : 29,669.58 = 8,092.86 : x
  2. Step 2: Convert to fraction form
    19,779.64/29,669.58 = 8,092.86/x
  3. Step 3: Cross multiply
    19,779.64x = 29,669.58 × 8,092.86
  4. Step 4: Simplify right side
    19,779.64x = 240,111,645.94
  5. Step 5: Solve for x
    x = 240,111,645.94/19,779.64
  6. Step 6: Final answer
    x = 12,139.34

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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.