Home / 12,779.07-19,140.91-6,191.44

Finding the Fourth Proportional to 12,779.07, 19,140.91 and 6,191.44

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Solution

The fourth proportional to 12,779.07, 19,140.91 and 6,191.44 is: 9,273.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.07 : 19,140.91 = 6,191.44 : x
  2. Step 2: Convert to fraction form
    12,779.07/19,140.91 = 6,191.44/x
  3. Step 3: Cross multiply
    12,779.07x = 19,140.91 × 6,191.44
  4. Step 4: Simplify right side
    12,779.07x = 118,509,732.48
  5. Step 5: Solve for x
    x = 118,509,732.48/12,779.07
  6. Step 6: Final answer
    x = 9,273.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.