Home / 11,055.96-15,246.36-9,381.96

Finding the Fourth Proportional to 11,055.96, 15,246.36 and 9,381.96

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Solution

The fourth proportional to 11,055.96, 15,246.36 and 9,381.96 is: 12,937.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,055.96 : 15,246.36 = 9,381.96 : x
  2. Step 2: Convert to fraction form
    11,055.96/15,246.36 = 9,381.96/x
  3. Step 3: Cross multiply
    11,055.96x = 15,246.36 × 9,381.96
  4. Step 4: Simplify right side
    11,055.96x = 143,040,739.67
  5. Step 5: Solve for x
    x = 143,040,739.67/11,055.96
  6. Step 6: Final answer
    x = 12,937.89

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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.