Home / 12,779.73-19,156.64-8,098.29

Finding the Fourth Proportional to 12,779.73, 19,156.64 and 8,098.29

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Solution

The fourth proportional to 12,779.73, 19,156.64 and 8,098.29 is: 12,139.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.73 : 19,156.64 = 8,098.29 : x
  2. Step 2: Convert to fraction form
    12,779.73/19,156.64 = 8,098.29/x
  3. Step 3: Cross multiply
    12,779.73x = 19,156.64 × 8,098.29
  4. Step 4: Simplify right side
    12,779.73x = 155,135,985.65
  5. Step 5: Solve for x
    x = 155,135,985.65/12,779.73
  6. Step 6: Final answer
    x = 12,139.22

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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.