Home / 12,005.40-17,991.90-6,727.44

Finding the Fourth Proportional to 12,005.40, 17,991.90 and 6,727.44

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Solution

The fourth proportional to 12,005.40, 17,991.90 and 6,727.44 is: 10,082.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005.40 : 17,991.90 = 6,727.44 : x
  2. Step 2: Convert to fraction form
    12,005.40/17,991.90 = 6,727.44/x
  3. Step 3: Cross multiply
    12,005.40x = 17,991.90 × 6,727.44
  4. Step 4: Simplify right side
    12,005.40x = 121,039,427.74
  5. Step 5: Solve for x
    x = 121,039,427.74/12,005.40
  6. Step 6: Final answer
    x = 10,082.08

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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.