Home / 11,985.14-16,539.54-6,679.64

Finding the Fourth Proportional to 11,985.14, 16,539.54 and 6,679.64

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Solution

The fourth proportional to 11,985.14, 16,539.54 and 6,679.64 is: 9,217.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.14 : 16,539.54 = 6,679.64 : x
  2. Step 2: Convert to fraction form
    11,985.14/16,539.54 = 6,679.64/x
  3. Step 3: Cross multiply
    11,985.14x = 16,539.54 × 6,679.64
  4. Step 4: Simplify right side
    11,985.14x = 110,478,172.97
  5. Step 5: Solve for x
    x = 110,478,172.97/11,985.14
  6. Step 6: Final answer
    x = 9,217.93

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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.