Home / 11,452.12-15,685.50-10,779.64

Finding the Fourth Proportional to 11,452.12, 15,685.50 and 10,779.64

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Solution

The fourth proportional to 11,452.12, 15,685.50 and 10,779.64 is: 14,764.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,452.12 : 15,685.50 = 10,779.64 : x
  2. Step 2: Convert to fraction form
    11,452.12/15,685.50 = 10,779.64/x
  3. Step 3: Cross multiply
    11,452.12x = 15,685.50 × 10,779.64
  4. Step 4: Simplify right side
    11,452.12x = 169,084,043.22
  5. Step 5: Solve for x
    x = 169,084,043.22/11,452.12
  6. Step 6: Final answer
    x = 14,764.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.