Home / 11,039.76-15,231.78-10,485.72

Finding the Fourth Proportional to 11,039.76, 15,231.78 and 10,485.72

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Solution

The fourth proportional to 11,039.76, 15,231.78 and 10,485.72 is: 14,467.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,039.76 : 15,231.78 = 10,485.72 : x
  2. Step 2: Convert to fraction form
    11,039.76/15,231.78 = 10,485.72/x
  3. Step 3: Cross multiply
    11,039.76x = 15,231.78 × 10,485.72
  4. Step 4: Simplify right side
    11,039.76x = 159,716,180.18
  5. Step 5: Solve for x
    x = 159,716,180.18/11,039.76
  6. Step 6: Final answer
    x = 14,467.36

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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.