Home / 11,434.37-15,661.20-10,761.86

Finding the Fourth Proportional to 11,434.37, 15,661.20 and 10,761.86

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Solution

The fourth proportional to 11,434.37, 15,661.20 and 10,761.86 is: 14,740.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,434.37 : 15,661.20 = 10,761.86 : x
  2. Step 2: Convert to fraction form
    11,434.37/15,661.20 = 10,761.86/x
  3. Step 3: Cross multiply
    11,434.37x = 15,661.20 × 10,761.86
  4. Step 4: Simplify right side
    11,434.37x = 168,543,660.81
  5. Step 5: Solve for x
    x = 168,543,660.81/11,434.37
  6. Step 6: Final answer
    x = 14,740.10

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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.