Home / 12,161.54-16,779.07-6,855.33

Finding the Fourth Proportional to 12,161.54, 16,779.07 and 6,855.33

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Solution

The fourth proportional to 12,161.54, 16,779.07 and 6,855.33 is: 9,458.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.54 : 16,779.07 = 6,855.33 : x
  2. Step 2: Convert to fraction form
    12,161.54/16,779.07 = 6,855.33/x
  3. Step 3: Cross multiply
    12,161.54x = 16,779.07 × 6,855.33
  4. Step 4: Simplify right side
    12,161.54x = 115,026,152.71
  5. Step 5: Solve for x
    x = 115,026,152.71/12,161.54
  6. Step 6: Final answer
    x = 9,458.19

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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.