Home / 11,985.24-16,539.66-6,681.12

Finding the Fourth Proportional to 11,985.24, 16,539.66 and 6,681.12

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Solution

The fourth proportional to 11,985.24, 16,539.66 and 6,681.12 is: 9,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.24 : 16,539.66 = 6,681.12 : x
  2. Step 2: Convert to fraction form
    11,985.24/16,539.66 = 6,681.12/x
  3. Step 3: Cross multiply
    11,985.24x = 16,539.66 × 6,681.12
  4. Step 4: Simplify right side
    11,985.24x = 110,503,453.22
  5. Step 5: Solve for x
    x = 110,503,453.22/11,985.24
  6. Step 6: Final answer
    x = 9,219.96

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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.