Home / 19,403.69-26,779.99-11,854.38

Finding the Fourth Proportional to 19,403.69, 26,779.99 and 11,854.38

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Solution

The fourth proportional to 19,403.69, 26,779.99 and 11,854.38 is: 16,360.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,403.69 : 26,779.99 = 11,854.38 : x
  2. Step 2: Convert to fraction form
    19,403.69/26,779.99 = 11,854.38/x
  3. Step 3: Cross multiply
    19,403.69x = 26,779.99 × 11,854.38
  4. Step 4: Simplify right side
    19,403.69x = 317,460,177.86
  5. Step 5: Solve for x
    x = 317,460,177.86/19,403.69
  6. Step 6: Final answer
    x = 16,360.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.