Home / 12,779.09-19,071.46-11,933.09

Finding the Fourth Proportional to 12,779.09, 19,071.46 and 11,933.09

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Solution

The fourth proportional to 12,779.09, 19,071.46 and 11,933.09 is: 17,808.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.09 : 19,071.46 = 11,933.09 : x
  2. Step 2: Convert to fraction form
    12,779.09/19,071.46 = 11,933.09/x
  3. Step 3: Cross multiply
    12,779.09x = 19,071.46 × 11,933.09
  4. Step 4: Simplify right side
    12,779.09x = 227,581,323.42
  5. Step 5: Solve for x
    x = 227,581,323.42/12,779.09
  6. Step 6: Final answer
    x = 17,808.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.