Home / 16,768.40-23,140.32-9,214.72

Finding the Fourth Proportional to 16,768.40, 23,140.32 and 9,214.72

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Solution

The fourth proportional to 16,768.40, 23,140.32 and 9,214.72 is: 12,716.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,768.40 : 23,140.32 = 9,214.72 : x
  2. Step 2: Convert to fraction form
    16,768.40/23,140.32 = 9,214.72/x
  3. Step 3: Cross multiply
    16,768.40x = 23,140.32 × 9,214.72
  4. Step 4: Simplify right side
    16,768.40x = 213,231,569.51
  5. Step 5: Solve for x
    x = 213,231,569.51/16,768.40
  6. Step 6: Final answer
    x = 12,716.27

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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.