Home / 19,779.75-27,296.06-10,947.75

Finding the Fourth Proportional to 19,779.75, 27,296.06 and 10,947.75

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Solution

The fourth proportional to 19,779.75, 27,296.06 and 10,947.75 is: 15,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.75 : 27,296.06 = 10,947.75 : x
  2. Step 2: Convert to fraction form
    19,779.75/27,296.06 = 10,947.75/x
  3. Step 3: Cross multiply
    19,779.75x = 27,296.06 × 10,947.75
  4. Step 4: Simplify right side
    19,779.75x = 298,830,440.87
  5. Step 5: Solve for x
    x = 298,830,440.87/19,779.75
  6. Step 6: Final answer
    x = 15,107.90

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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.