Home / 12,115.54-16,719.37-6,810.31

Finding the Fourth Proportional to 12,115.54, 16,719.37 and 6,810.31

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Solution

The fourth proportional to 12,115.54, 16,719.37 and 6,810.31 is: 9,398.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.54 : 16,719.37 = 6,810.31 : x
  2. Step 2: Convert to fraction form
    12,115.54/16,719.37 = 6,810.31/x
  3. Step 3: Cross multiply
    12,115.54x = 16,719.37 × 6,810.31
  4. Step 4: Simplify right side
    12,115.54x = 113,864,092.70
  5. Step 5: Solve for x
    x = 113,864,092.70/12,115.54
  6. Step 6: Final answer
    x = 9,398.19

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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.