Home / 19,779.13-29,669.60-11,007.44

Finding the Fourth Proportional to 19,779.13, 29,669.60 and 11,007.44

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Solution

The fourth proportional to 19,779.13, 29,669.60 and 11,007.44 is: 16,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.13 : 29,669.60 = 11,007.44 : x
  2. Step 2: Convert to fraction form
    19,779.13/29,669.60 = 11,007.44/x
  3. Step 3: Cross multiply
    19,779.13x = 29,669.60 × 11,007.44
  4. Step 4: Simplify right side
    19,779.13x = 326,586,220.99
  5. Step 5: Solve for x
    x = 326,586,220.99/19,779.13
  6. Step 6: Final answer
    x = 16,511.66

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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.