Home / 12,078.55-16,668.48-6,773.47

Finding the Fourth Proportional to 12,078.55, 16,668.48 and 6,773.47

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Solution

The fourth proportional to 12,078.55, 16,668.48 and 6,773.47 is: 9,347.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078.55 : 16,668.48 = 6,773.47 : x
  2. Step 2: Convert to fraction form
    12,078.55/16,668.48 = 6,773.47/x
  3. Step 3: Cross multiply
    12,078.55x = 16,668.48 × 6,773.47
  4. Step 4: Simplify right side
    12,078.55x = 112,903,449.23
  5. Step 5: Solve for x
    x = 112,903,449.23/12,078.55
  6. Step 6: Final answer
    x = 9,347.43

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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.