Home / 11,778.88-16,248.66-7,301.20

Finding the Fourth Proportional to 11,778.88, 16,248.66 and 7,301.20

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Solution

The fourth proportional to 11,778.88, 16,248.66 and 7,301.20 is: 10,071.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.88 : 16,248.66 = 7,301.20 : x
  2. Step 2: Convert to fraction form
    11,778.88/16,248.66 = 7,301.20/x
  3. Step 3: Cross multiply
    11,778.88x = 16,248.66 × 7,301.20
  4. Step 4: Simplify right side
    11,778.88x = 118,634,716.39
  5. Step 5: Solve for x
    x = 118,634,716.39/11,778.88
  6. Step 6: Final answer
    x = 10,071.82

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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.