Home / 9,090.26-13,607.30-7,761.86

Finding the Fourth Proportional to 9,090.26, 13,607.30 and 7,761.86

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Solution

The fourth proportional to 9,090.26, 13,607.30 and 7,761.86 is: 11,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.26 : 13,607.30 = 7,761.86 : x
  2. Step 2: Convert to fraction form
    9,090.26/13,607.30 = 7,761.86/x
  3. Step 3: Cross multiply
    9,090.26x = 13,607.30 × 7,761.86
  4. Step 4: Simplify right side
    9,090.26x = 105,617,957.58
  5. Step 5: Solve for x
    x = 105,617,957.58/9,090.26
  6. Step 6: Final answer
    x = 11,618.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.