Home / 12,779.03-17,628.84-11,007.56

Finding the Fourth Proportional to 12,779.03, 17,628.84 and 11,007.56

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Solution

The fourth proportional to 12,779.03, 17,628.84 and 11,007.56 is: 15,185.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.03 : 17,628.84 = 11,007.56 : x
  2. Step 2: Convert to fraction form
    12,779.03/17,628.84 = 11,007.56/x
  3. Step 3: Cross multiply
    12,779.03x = 17,628.84 × 11,007.56
  4. Step 4: Simplify right side
    12,779.03x = 194,050,558.10
  5. Step 5: Solve for x
    x = 194,050,558.10/12,779.03
  6. Step 6: Final answer
    x = 15,185.07

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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.