Home / 12,101.10-18,166.05-6,840.30

Finding the Fourth Proportional to 12,101.10, 18,166.05 and 6,840.30

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Solution

The fourth proportional to 12,101.10, 18,166.05 and 6,840.30 is: 10,268.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101.10 : 18,166.05 = 6,840.30 : x
  2. Step 2: Convert to fraction form
    12,101.10/18,166.05 = 6,840.30/x
  3. Step 3: Cross multiply
    12,101.10x = 18,166.05 × 6,840.30
  4. Step 4: Simplify right side
    12,101.10x = 124,261,231.82
  5. Step 5: Solve for x
    x = 124,261,231.82/12,101.10
  6. Step 6: Final answer
    x = 10,268.59

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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.