Home / 15,062.72-20,779.56-9,759.32

Finding the Fourth Proportional to 15,062.72, 20,779.56 and 9,759.32

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Solution

The fourth proportional to 15,062.72, 20,779.56 and 9,759.32 is: 13,463.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,062.72 : 20,779.56 = 9,759.32 : x
  2. Step 2: Convert to fraction form
    15,062.72/20,779.56 = 9,759.32/x
  3. Step 3: Cross multiply
    15,062.72x = 20,779.56 × 9,759.32
  4. Step 4: Simplify right side
    15,062.72x = 202,794,375.50
  5. Step 5: Solve for x
    x = 202,794,375.50/15,062.72
  6. Step 6: Final answer
    x = 13,463.33

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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.