Home / 10,785.88-16,172.12-4,542.68

Finding the Fourth Proportional to 10,785.88, 16,172.12 and 4,542.68

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Solution

The fourth proportional to 10,785.88, 16,172.12 and 4,542.68 is: 6,811.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785.88 : 16,172.12 = 4,542.68 : x
  2. Step 2: Convert to fraction form
    10,785.88/16,172.12 = 4,542.68/x
  3. Step 3: Cross multiply
    10,785.88x = 16,172.12 × 4,542.68
  4. Step 4: Simplify right side
    10,785.88x = 73,464,662.51
  5. Step 5: Solve for x
    x = 73,464,662.51/10,785.88
  6. Step 6: Final answer
    x = 6,811.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.