Home / 9,090.13-13,607.10-7,761.73

Finding the Fourth Proportional to 9,090.13, 13,607.10 and 7,761.73

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Solution

The fourth proportional to 9,090.13, 13,607.10 and 7,761.73 is: 11,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.13 : 13,607.10 = 7,761.73 : x
  2. Step 2: Convert to fraction form
    9,090.13/13,607.10 = 7,761.73/x
  3. Step 3: Cross multiply
    9,090.13x = 13,607.10 × 7,761.73
  4. Step 4: Simplify right side
    9,090.13x = 105,614,636.28
  5. Step 5: Solve for x
    x = 105,614,636.28/9,090.13
  6. Step 6: Final answer
    x = 11,618.61

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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.