Home / 11,991.05-16,549.15-6,888.16

Finding the Fourth Proportional to 11,991.05, 16,549.15 and 6,888.16

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Solution

The fourth proportional to 11,991.05, 16,549.15 and 6,888.16 is: 9,506.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991.05 : 16,549.15 = 6,888.16 : x
  2. Step 2: Convert to fraction form
    11,991.05/16,549.15 = 6,888.16/x
  3. Step 3: Cross multiply
    11,991.05x = 16,549.15 × 6,888.16
  4. Step 4: Simplify right side
    11,991.05x = 113,993,158.62
  5. Step 5: Solve for x
    x = 113,993,158.62/11,991.05
  6. Step 6: Final answer
    x = 9,506.52

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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.