Home / 11,129.66-15,277.09-9,842.52

Finding the Fourth Proportional to 11,129.66, 15,277.09 and 9,842.52

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Solution

The fourth proportional to 11,129.66, 15,277.09 and 9,842.52 is: 13,510.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.66 : 15,277.09 = 9,842.52 : x
  2. Step 2: Convert to fraction form
    11,129.66/15,277.09 = 9,842.52/x
  3. Step 3: Cross multiply
    11,129.66x = 15,277.09 × 9,842.52
  4. Step 4: Simplify right side
    11,129.66x = 150,365,063.87
  5. Step 5: Solve for x
    x = 150,365,063.87/11,129.66
  6. Step 6: Final answer
    x = 13,510.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.