Home / 14,067.40-19,412.46-7,779.88

Finding the Fourth Proportional to 14,067.40, 19,412.46 and 7,779.88

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Solution

The fourth proportional to 14,067.40, 19,412.46 and 7,779.88 is: 10,735.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,067.40 : 19,412.46 = 7,779.88 : x
  2. Step 2: Convert to fraction form
    14,067.40/19,412.46 = 7,779.88/x
  3. Step 3: Cross multiply
    14,067.40x = 19,412.46 × 7,779.88
  4. Step 4: Simplify right side
    14,067.40x = 151,026,609.30
  5. Step 5: Solve for x
    x = 151,026,609.30/14,067.40
  6. Step 6: Final answer
    x = 10,735.93

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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.