Home / 13,015.07-19,546.74-6,779.39

Finding the Fourth Proportional to 13,015.07, 19,546.74 and 6,779.39

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Solution

The fourth proportional to 13,015.07, 19,546.74 and 6,779.39 is: 10,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.07 : 19,546.74 = 6,779.39 : x
  2. Step 2: Convert to fraction form
    13,015.07/19,546.74 = 6,779.39/x
  3. Step 3: Cross multiply
    13,015.07x = 19,546.74 × 6,779.39
  4. Step 4: Simplify right side
    13,015.07x = 132,514,875.95
  5. Step 5: Solve for x
    x = 132,514,875.95/13,015.07
  6. Step 6: Final answer
    x = 10,181.65

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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.