Home / 15,969.60-22,032.96-11,779.20

Finding the Fourth Proportional to 15,969.60, 22,032.96 and 11,779.20

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Solution

The fourth proportional to 15,969.60, 22,032.96 and 11,779.20 is: 16,251.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,969.60 : 22,032.96 = 11,779.20 : x
  2. Step 2: Convert to fraction form
    15,969.60/22,032.96 = 11,779.20/x
  3. Step 3: Cross multiply
    15,969.60x = 22,032.96 × 11,779.20
  4. Step 4: Simplify right side
    15,969.60x = 259,530,642.43
  5. Step 5: Solve for x
    x = 259,530,642.43/15,969.60
  6. Step 6: Final answer
    x = 16,251.54

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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.