Home / 11,365.11-15,687.40-9,238.94

Finding the Fourth Proportional to 11,365.11, 15,687.40 and 9,238.94

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Solution

The fourth proportional to 11,365.11, 15,687.40 and 9,238.94 is: 12,752.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,365.11 : 15,687.40 = 9,238.94 : x
  2. Step 2: Convert to fraction form
    11,365.11/15,687.40 = 9,238.94/x
  3. Step 3: Cross multiply
    11,365.11x = 15,687.40 × 9,238.94
  4. Step 4: Simplify right side
    11,365.11x = 144,934,851.87
  5. Step 5: Solve for x
    x = 144,934,851.87/11,365.11
  6. Step 6: Final answer
    x = 12,752.61

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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.