Home / 11,457.25-17,110.39-9,900.43

Finding the Fourth Proportional to 11,457.25, 17,110.39 and 9,900.43

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Solution

The fourth proportional to 11,457.25, 17,110.39 and 9,900.43 is: 14,785.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,457.25 : 17,110.39 = 9,900.43 : x
  2. Step 2: Convert to fraction form
    11,457.25/17,110.39 = 9,900.43/x
  3. Step 3: Cross multiply
    11,457.25x = 17,110.39 × 9,900.43
  4. Step 4: Simplify right side
    11,457.25x = 169,400,218.47
  5. Step 5: Solve for x
    x = 169,400,218.47/11,457.25
  6. Step 6: Final answer
    x = 14,785.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.