Home / 12,191.82-16,823.48-6,885.62

Finding the Fourth Proportional to 12,191.82, 16,823.48 and 6,885.62

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Solution

The fourth proportional to 12,191.82, 16,823.48 and 6,885.62 is: 9,501.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.82 : 16,823.48 = 6,885.62 : x
  2. Step 2: Convert to fraction form
    12,191.82/16,823.48 = 6,885.62/x
  3. Step 3: Cross multiply
    12,191.82x = 16,823.48 × 6,885.62
  4. Step 4: Simplify right side
    12,191.82x = 115,840,090.36
  5. Step 5: Solve for x
    x = 115,840,090.36/12,191.82
  6. Step 6: Final answer
    x = 9,501.46

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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.