Home / 12,187.05-16,817.99-6,881.55

Finding the Fourth Proportional to 12,187.05, 16,817.99 and 6,881.55

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Solution

The fourth proportional to 12,187.05, 16,817.99 and 6,881.55 is: 9,496.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.05 : 16,817.99 = 6,881.55 : x
  2. Step 2: Convert to fraction form
    12,187.05/16,817.99 = 6,881.55/x
  3. Step 3: Cross multiply
    12,187.05x = 16,817.99 × 6,881.55
  4. Step 4: Simplify right side
    12,187.05x = 115,733,839.08
  5. Step 5: Solve for x
    x = 115,733,839.08/12,187.05
  6. Step 6: Final answer
    x = 9,496.46

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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.