Home / 11,785.06-16,261.50-7,539.89

Finding the Fourth Proportional to 11,785.06, 16,261.50 and 7,539.89

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Solution

The fourth proportional to 11,785.06, 16,261.50 and 7,539.89 is: 10,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.06 : 16,261.50 = 7,539.89 : x
  2. Step 2: Convert to fraction form
    11,785.06/16,261.50 = 7,539.89/x
  3. Step 3: Cross multiply
    11,785.06x = 16,261.50 × 7,539.89
  4. Step 4: Simplify right side
    11,785.06x = 122,609,921.24
  5. Step 5: Solve for x
    x = 122,609,921.24/11,785.06
  6. Step 6: Final answer
    x = 10,403.84

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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.