Home / 12,066.88-16,653.12-6,761.60

Finding the Fourth Proportional to 12,066.88, 16,653.12 and 6,761.60

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Solution

The fourth proportional to 12,066.88, 16,653.12 and 6,761.60 is: 9,331.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,066.88 : 16,653.12 = 6,761.60 : x
  2. Step 2: Convert to fraction form
    12,066.88/16,653.12 = 6,761.60/x
  3. Step 3: Cross multiply
    12,066.88x = 16,653.12 × 6,761.60
  4. Step 4: Simplify right side
    12,066.88x = 112,601,736.19
  5. Step 5: Solve for x
    x = 112,601,736.19/12,066.88
  6. Step 6: Final answer
    x = 9,331.47

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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.